1) An electromagnetic wave is a result of electric and magnetic fields acting together. T 1)

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "1) An electromagnetic wave is a result of electric and magnetic fields acting together. T 1)"

Transcription

1 Exam 3 Review Name TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) An electromagnetic wave is a result of electric and magnetic fields acting together. T 1) 2) Electromagnetic waves do not require a medium to be transmitted. T 2) 3) Accelerated charges radiate electromagnetic waves. T 3) 4) The ratio of the electric field to the magnetic field in the electromagnetic wave is the speed of the light. T 4) 5) The intensity of the radiation field of an antenna is inversely proportional to the distance from the antenna. F 5) 6) The reflection of light from a rough surface is called specular reflection. F 6) 7) A concave mirror is also known as a diverging mirror. F 7) 8) Magnification is positive for inverted images. F 8) 9) The difference between a camera and the human eye is that a camera utilizes a fixed focal length lens and the eye does not. T 9) 10) A convex lens always produces a virtual image. F 10) 11) Farsightedness can be corrected with a converging lens. T 11) 12) The far point of a normal human eye is infinity. T 12) 13) A magnifying glass can be made from a diverging lens. F 13) 14) The focal length of the objective of a telescope is much longer than the focal length of the eyepiece. T 14) MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 15) In an electromagnetic wave the E and B fields are oriented such that 15) A) they are parallel to one another and parallel to the direction of wave propagation. B) they are perpendicular to one another and perpendicular to the direction of wave propagation.xxx C) they are parallel to one another and perpendicular to the direction of wave propagation. D) they are perpendicular to one another and parallel to the direction of wave propagation. E) None of the above answers is correct. 1

2 16) The direction of propagation of electromagnetic waves is given by the 16) A) right and left hand rules. B) right hand rule.xxx C) left hand rule. D) None of the other answers given is correct. 17) Which one of the following is not an electromagnetic wave? 17) A) UV B) sound wavesxxx C) radio waves D) gamma rays E) infrared 18) The energy density of an electromagnetic wave is 18) A) entirely in the magnetic field. B) 1/4 in the electric field and 3/4 in the magnetic field. C) equally divided between the magnetic and the electric fields.xxx D) 1/4 in the magnetic field and 3/4 in the electric field. E) entirely in the electric field. 19) The distance between the two planets is m. How much time would the light signal take to go from one planet to the other? A) sxxx B) s C) s D) s E) None of the other answers is correct. 19) FIGURE ) For an xyz-coordinate system shown in Figure 25-2, if the E-vector is in the +z direction, and the B-vector is in the +x direction, what is the direction of propagation of the electromagnetic waves? A) +yxxx B) +x C) -x D) -y E) +z 20) 2

3 21) A car is approaching a radio station at a speed of 25.0 m/s. If the radio station broadcasts at a frequency of 74.5 MHz, what change in frequency does the driver observe? A) 64.5 Hz B) 6.21 HzXXX C) 98.3 Hz D) 726 Hz E) 67.0 Hz 22) A Doppler weather radar operates at a frequency of 3.40 GHz. The wave from this radar system reflects from an approaching weather system moving with a speed of 39.0 m/s. What is the difference in frequency between the outgoing and returning waves? A) 351 Hz B) 419 Hz C) 670 Hz D) 322 Hz E) 442 HzXXX 21) 22) 23) How far does a beam of light travel in one full year? 23) A) m B) m C) m D) mxxx E) m 24) A laser beam takes 24 ms to be reflected from the surface of a planet. How far from the laser source is this planet's surface? A) m B) m C) mxxx D) m E) m 25) The maximum value of the electric field in an electromagnetic wave is 1.5 V/m. What is the maximum value of the magnetic field associated with this wave? A) 4.0 nt B) 7.0 nt C) 6.0 nt D) 5.0 nt E) 3.0 nt 24) 25) 26) The average intensity of the sunlight in Miami, Florida, is 1060 W/m2. What is the average value of the force exerted on a 16 m2 surface that absorbs this light? A) N B) N C) NXXX D) N/m2 E) N 26) 3

4 27) An mW laser beam emits a cylindrical beam of light mm in diameter. What is the maximum value of the magnetic field? A) T B) TXXX C) T D) T E) T 28) A 60.0 W light bulb radiates light uniformly in all different directions. What is the value of E at a distance of m from the bulb? A) 106 N/CXXX B) 162 N/C C) 52.9 N/C D) 212 N/C E) 82.1 N/C 27) 28) 29) The wavelength of a certain portion of microwaves is 40 mm. What is its frequency? 29) A) 40 GHz B) 0.75 GHz C) 7.5 GHzXXX D) 4.0 GHz E) 75 GHz 30) Which of the following sets of characteristics describes the image formed by a plane mirror? 30) A) virtual and inverted B) real and inverted C) real and upright D) virtual and uprightxxx E) All of the previous statements can be correct. 31) The perpendicular distance from the center of curvature to a spherical mirror is called 31) A) the center of curvature. B) twice the radius of curvature. C) the focal length. D) the perpendicular axis. E) the radius of curvature.xxx 32) A beam of light that is parallel to the principal axis is incident on a concave mirror. What happens to the reflected beam of light? A) It also is parallel to the principal axis. B) It passes through the center of curvature of the mirror. C) It is perpendicular to the principal axis. D) It passes through the focal point of the mirror.xxx E) It passes between the focal point and the center of curvature of the mirror. 32) 4

5 33) A beam of white light goes through dispersion in a prism. The color that bends the most is 33) A) yellow. B) violet.xxx C) red. D) green. E) orange. 34) The critical angle for a beam of light passing from water into air is This means that all light rays with an angle of incidence greater than this angle will be A) totally polarized. B) partially reflected and partially transmitted. C) totally reflected.xxx D) totally transmitted. E) absorbed. 34) 35) Which of the following is a correct statement? 35) A) A convex mirror always produces a virtual image.xxx B) A concave mirror always produces a virtual image. C) A convex mirror always produces a real image. D) A concave mirror always produces a real image. E) All of the previous statements can be correct. 36) An object is located 3.8 m in front of a plane mirror. The image formed by the mirror appears to be 36) A) 1.9 m behind the mirror's surface. B) 3.8 m behind the mirror's surface.xxx C) on the mirror's surface. D) 1.9 m in front of the mirror. E) 3.8 m in front of the mirror. 37) A ray of light strikes a plane mirror perpendicular to the mirror. What is the angle of reflection? 37) A) 360 B) 270 C) 0 XXX D) 180 E) 90 38) The reflecting surfaces of two plane mirrors are perpendicular to each other. How many images of himself will a person standing at a certain distance from the intersection of these mirrors see? A) 3XXX B) 4 C) 5 D) 2 E) 1 38) 39) The focal length of a concave mirror is 20 cm. What is its radius of curvature? 39) A) 10 cm B) -20 cm C) 20 cm D) 40 cmxxx E) -40 cm 40) An object 4.0 cm in height is placed 8.0 cm in front of a concave mirror with a focal length of 10.0 cm. What is the position of its image in relation to the mirror and what are its characteristics? A) 40.0 cm on the other side of mirror, real, 6.0 times bigger B) 10.0 cm on the other side of mirror, virtual, 10.0 times bigger C) 10.0 cm on the same side of mirror, real, 6.0 times bigger D) 40.0 cm on the other side of mirror, virtual, 5.0 times biggerxxx E) 18.0 cm on the same side of mirror, virtual, 2.25 times bigger 40) 5

6 41) John's face is 20 cm in front of a concave shaving mirror of focal length 30 cm. How large an image does he observe? A) half as large as his face B) four times as large as his face C) three times as large as his facexxx D) of the same size as his face E) twice as large as his face 42) An object is placed 50 cm in front of a concave mirror with a focal length of 25 cm. What is the magnification? A) -1.0XXX B) -1.5 C) -2.0 D) -2.5 E) ) 42) 43) The index of refraction of a certain medium is 1.5. What is the speed of light in that medium? 43) A) m/s B) m/sxxx C) m/s D) m/s E) m/s 44) A ray of light in air enters a glass surface at right angles to the surface. What is the angle of refraction? A) 360 B) 90 C) 0 XXX D) 180 E) ) 45) An object is placed 10 cm from a convex lens of focal length 20 cm. What is the magnification? 45) A) 2.0XXX B) 0.50 C) 2.5 D) 1.0 E) ) A beam of light in water (n = 1.33) enters a glass slab (n = 1.50) at an angle of incidence of What is the angle of refraction? A) 60.0 B) 27.5 C) 50.2 XXX D) 39.8 E) ) A 4.0-cm-tall object is placed 50.0 cm from a diverging lens of focal length 25.0 cm. What is the nature and location of the image? A) A virtual image, 1.3 cm tall, 16.7 cm same side as the objectxxx B) A virtual image, 4.0 cm tall, 20 cm other side of the object C) A real image, 1.3 cm tall, 16.7 cm same side as the object D) A real image, 4.0 cm tall, 20 cm other side of the object E) A virtual image, 2.0 cm tall, 10 cm other side of the object 46) 47) 48) The length of time the shutter is open when the film is exposed in a camera is determined by the 48) A) focal length of the lens.. B) diameter of the aperture. C) f-stop. D) shutter speed.xxx E) focusing. 6

7 49) The back of a person's eye is too close to the lens. This person is suffering from 49) A) spherical aberration. B) chromatic aberration. C) farsightedness.xxx D) nearsightedness. E) astigmatism. 50) You have a choice between two lenses of focal lengths fa and fb = 2fa to use as objective lens in building a compound microscope. If the magnification you obtain using lens A is Ma, what will be the magnification when using lens B? A) Mb = 8Ma B) Mb = Ma/2XXX C) Mb = 4Ma D) Mb = Ma/4 E) Mb = 2Ma 50) 51) Which one of the following is not a characteristic of a simple two-lens astronomical refracting telescope? A) The final image is virtual. B) The angular size of the final image is larger than that of the object. C) The objective forms a virtual image.xxx D) The final image is inverted. 51) 52) Do mirrors suffer from chromatic aberration? 52) A) Yes, every optical instrument suffers from it. B) No, because the angle of reflection is always equal to the angle of incidence.xxx C) Yes, because of their specular dispersion. D) None of the previous choices is correct. 53) The deviation of a lens from its ideal behavior is referred to as 53) A) chromatic aberration. B) spherical aberration. C) achromatic aberration. D) an aberration.xxx E) None of the other choices is correct. 54) What type of lens is a magnifying glass? 54) A) convergingxxx B) diverging C) cylindrical D) achromatic E) spherical 55) What is the focal length of the corrective contact lens needed by a nearsighted person whose far point is 60 cm? A) +60 cm B) +130 cm C) -30 cm D) -60 cmxxx E) +30 cm 55) 7

8 56) A camera lens has a focal length of 50.0 mm and an aperture setting of What is the aperture diameter of this lens? A) 13.6 mm B) 14.2 mm C) 15.0 mm D) 12.5 mmxxx E) 10.1 mm 56) 57) What is the power of the combined lenses with individual powers of 8.0 diopters and 4.0 diopters? 57) A) 12 dioptersxxx B) 32 diopters C) 2.0 diopters D) 4.0 diopters E) 24 diopters 58) A nearsighted person has a far point that is 4.2 m from his eyes. What focal length lenses must he use in his contact lenses to allow him to focus on distant objects? A) 4.2 m B) -4.2 mxxx C) -5.2 m D) 5.2 m E) 4.8 m 59) What power contact lens must be used to correct the vision of a nearsighted person whose far point is 40 cm? A) 4.0 diopters B) -2.5 dioptersxxx C) -3.6 diopters D) -4.0 diopters E) 2.5 diopters 60) A person can read the newspaper when it is held at 60 cm from his eyes. What should the focal length of his contact lenses be to allow him to read the newspaper comfortably at a distance of 30 cm? A) +90 cm B) -30 cm C) +60 cmxxx D) -60 cm E) +30 cm 61) A magnifying glass produces an angular magnification of 7. What is the focal length of this lens if a person whose near point is 28 cm reads a book using this magnifying glass? A) 4 cmxxx B) 3 cm C) 2 cm D) 6 cm E) 5 cm 62) What is the magnification of a magnifying glass of focal length 4.0 cm if the image is to be viewed by a relaxed eye with a near point of 25 cm? A) 4.0 B) 2.0 C) 3.0 D) 3.6 E) 6.3XXX 63) A magnifying glass uses a converging lens with a refractive power of 20 diopters. What is the magnification if the image is to be viewed by a relaxed eye with a near point of 25 cm? A) 1.0 B) 3.0 C) 5.0XXX D) 4.0 E) ) 59) 60) 61) 62) 63) 8

9 64) The length of a telescope is 2.20 m and the focal length of the eyepiece is 1.9 cm. What is the focal length of the objective? A) 111 cm B) 41 cm C) 218 cmxxx D) 16 cm E) 45 cm 65) The length of the telescope is 1.60 m and it has a magnification of What is the focal length of the objective? A) 96.0 cm B) 128 cm C) 157 cmxxx D) 100 cm E) 60.0 cm 66) The distance between the object and the eyepiece of a compound microscope is 25.0 cm. The focal length of its objective lens is cm and the eyepiece has a focal length of 2.60 cm. What is the total magnification of the microscope when used by the person of normal eyesight? A) -772 B) -1070XXX C) -520 D) -204 E) ) The focal lengths of the objective and the eyepiece in a microscope are 0.29 cm and 2.5 cm, respectively. An object is placed 0.3 cm from the objective. The image of this object is viewed with the eyepiece adjusted for minimum eyestrain. What is the distance between the objective and the eyepiece? A) 11.5 cm B) 9.85 cm C) 11.2 cmxxx D) 10.1 cm E) 10.4 cm 64) 65) 66) 67) 9

Lecture Outline Chapter 27. Physics, 4 th Edition James S. Walker. Copyright 2010 Pearson Education, Inc.

Lecture Outline Chapter 27. Physics, 4 th Edition James S. Walker. Copyright 2010 Pearson Education, Inc. Lecture Outline Chapter 27 Physics, 4 th Edition James S. Walker Chapter 27 Optical Instruments Units of Chapter 27 The Human Eye and the Camera Lenses in Combination and Corrective Optics The Magnifying

More information

Final Reg Optics Review SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.

Final Reg Optics Review SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Final Reg Optics Review 1) How far are you from your image when you stand 0.75 m in front of a vertical plane mirror? 1) 2) A object is 12 cm in front of a concave mirror, and the image is 3.0 cm in front

More information

OPTICS DIVISION B. School/#: Names:

OPTICS DIVISION B. School/#: Names: OPTICS DIVISION B School/#: Names: Directions: Fill in your response for each question in the space provided. All questions are worth two points. Multiple Choice (2 points each question) 1. Which of the

More information

Person s Optics Test KEY SSSS

Person s Optics Test KEY SSSS Person s Optics Test KEY SSSS 2017-18 Competitors Names: School Name: All questions are worth one point unless otherwise stated. Show ALL WORK or you may not receive credit. Include correct units whenever

More information

30 Lenses. Lenses change the paths of light.

30 Lenses. Lenses change the paths of light. Lenses change the paths of light. A light ray bends as it enters glass and bends again as it leaves. Light passing through glass of a certain shape can form an image that appears larger, smaller, closer,

More information

30 Lenses. Lenses change the paths of light.

30 Lenses. Lenses change the paths of light. Lenses change the paths of light. A light ray bends as it enters glass and bends again as it leaves. Light passing through glass of a certain shape can form an image that appears larger, smaller, closer,

More information

25 cm. 60 cm. 50 cm. 40 cm.

25 cm. 60 cm. 50 cm. 40 cm. Geometrical Optics 7. The image formed by a plane mirror is: (a) Real. (b) Virtual. (c) Erect and of equal size. (d) Laterally inverted. (e) B, c, and d. (f) A, b and c. 8. A real image is that: (a) Which

More information

Chapter 26. The Refraction of Light: Lenses and Optical Instruments

Chapter 26. The Refraction of Light: Lenses and Optical Instruments Chapter 26 The Refraction of Light: Lenses and Optical Instruments 26.1 The Index of Refraction Light travels through a vacuum at a speed c=3. 00 10 8 m/ s Light travels through materials at a speed less

More information

Converging Lenses. Parallel rays are brought to a focus by a converging lens (one that is thicker in the center than it is at the edge).

Converging Lenses. Parallel rays are brought to a focus by a converging lens (one that is thicker in the center than it is at the edge). Chapter 30: Lenses Types of Lenses Piece of glass or transparent material that bends parallel rays of light so they cross and form an image Two types: Converging Diverging Converging Lenses Parallel rays

More information

Chapter 36. Image Formation

Chapter 36. Image Formation Chapter 36 Image Formation Image of Formation Images can result when light rays encounter flat or curved surfaces between two media. Images can be formed either by reflection or refraction due to these

More information

Chapter 36. Image Formation

Chapter 36. Image Formation Chapter 36 Image Formation Notation for Mirrors and Lenses The object distance is the distance from the object to the mirror or lens Denoted by p The image distance is the distance from the image to the

More information

Chapter 29/30. Wave Fronts and Rays. Refraction of Sound. Dispersion in a Prism. Index of Refraction. Refraction and Lenses

Chapter 29/30. Wave Fronts and Rays. Refraction of Sound. Dispersion in a Prism. Index of Refraction. Refraction and Lenses Chapter 29/30 Refraction and Lenses Refraction Refraction the bending of waves as they pass from one medium into another. Caused by a change in the average speed of light. Analogy A car that drives off

More information

Chapter 34 Geometric Optics

Chapter 34 Geometric Optics Chapter 34 Geometric Optics Lecture by Dr. Hebin Li Goals of Chapter 34 To see how plane and curved mirrors form images To learn how lenses form images To understand how a simple image system works Reflection

More information

Chapter 18 Optical Elements

Chapter 18 Optical Elements Chapter 18 Optical Elements GOALS When you have mastered the content of this chapter, you will be able to achieve the following goals: Definitions Define each of the following terms and use it in an operational

More information

Algebra Based Physics. Reflection. Slide 1 / 66 Slide 2 / 66. Slide 3 / 66. Slide 4 / 66. Slide 5 / 66. Slide 6 / 66.

Algebra Based Physics. Reflection. Slide 1 / 66 Slide 2 / 66. Slide 3 / 66. Slide 4 / 66. Slide 5 / 66. Slide 6 / 66. Slide 1 / 66 Slide 2 / 66 Algebra Based Physics Geometric Optics 2015-12-01 www.njctl.org Slide 3 / 66 Slide 4 / 66 Table of ontents lick on the topic to go to that section Reflection Refraction and Snell's

More information

Chapter Ray and Wave Optics

Chapter Ray and Wave Optics 109 Chapter Ray and Wave Optics 1. An astronomical telescope has a large aperture to [2002] reduce spherical aberration have high resolution increase span of observation have low dispersion. 2. If two

More information

L 32 Light and Optics [2] The rainbow. Why is it a rain BOW? Atmospheric scattering. Different colors are refracted (bent) by different amounts

L 32 Light and Optics [2] The rainbow. Why is it a rain BOW? Atmospheric scattering. Different colors are refracted (bent) by different amounts L 32 Light and Optics [2] Measurements of the speed of light The bending of light refraction Total internal reflection Dispersion Dispersion Rainbows Atmospheric scattering Blue sky and red sunsets Mirrors

More information

Option G 2: Lenses. The diagram below shows the image of a square grid as produced by a lens that does not cause spherical aberration.

Option G 2: Lenses. The diagram below shows the image of a square grid as produced by a lens that does not cause spherical aberration. Name: Date: Option G 2: Lenses 1. This question is about spherical aberration. The diagram below shows the image of a square grid as produced by a lens that does not cause spherical aberration. In the

More information

Geometric Optics. Ray Model. assume light travels in straight line uses rays to understand and predict reflection & refraction

Geometric Optics. Ray Model. assume light travels in straight line uses rays to understand and predict reflection & refraction Geometric Optics Ray Model assume light travels in straight line uses rays to understand and predict reflection & refraction General Physics 2 Geometric Optics 1 Reflection Law of reflection the angle

More information

There is a range of distances over which objects will be in focus; this is called the depth of field of the lens. Objects closer or farther are

There is a range of distances over which objects will be in focus; this is called the depth of field of the lens. Objects closer or farther are Chapter 25 Optical Instruments Some Topics in Chapter 25 Cameras The Human Eye; Corrective Lenses Magnifying Glass Telescopes Compound Microscope Aberrations of Lenses and Mirrors Limits of Resolution

More information

PHYS 202 OUTLINE FOR PART III LIGHT & OPTICS

PHYS 202 OUTLINE FOR PART III LIGHT & OPTICS PHYS 202 OUTLINE FOR PART III LIGHT & OPTICS Electromagnetic Waves A. Electromagnetic waves S-23,24 1. speed of waves = 1/( o o ) ½ = 3 x 10 8 m/s = c 2. waves and frequency: the spectrum (a) radio red

More information

Chapter 25 Optical Instruments

Chapter 25 Optical Instruments Chapter 25 Optical Instruments Units of Chapter 25 Cameras, Film, and Digital The Human Eye; Corrective Lenses Magnifying Glass Telescopes Compound Microscope Aberrations of Lenses and Mirrors Limits of

More information

Ch 24. Geometric Optics

Ch 24. Geometric Optics text concept Ch 24. Geometric Optics Fig. 24 3 A point source of light P and its image P, in a plane mirror. Angle of incidence =angle of reflection. text. Fig. 24 4 The blue dashed line through object

More information

G1 THE NATURE OF EM WAVES AND LIGHT SOURCES

G1 THE NATURE OF EM WAVES AND LIGHT SOURCES G1 THE NATURE OF EM WAVES AND LIGHT SOURCES G2 OPTICAL INSTRUMENTS HW/Study Packet Required: READ Tsokos, pp 598-620 SL/HL Supplemental: Hamper, pp 411-450 DO Questions p 605 #1,3 pp 621-623 #6,8,15,18,19,24,26

More information

WHS-CH-23 Light: Geometric Optics Show all your work, equations used, and box in your answers!

WHS-CH-23 Light: Geometric Optics Show all your work, equations used, and box in your answers! WHS-CH-23 Light: Geometric Optics Show all your work, equations used, and box in your answers! Willebrord Snell (1591-1626) Snell developed methods for measuring the Earth. He proposed the method of triangulation

More information

LIGHT REFLECTION AND REFRACTION

LIGHT REFLECTION AND REFRACTION LIGHT REFLECTION AND REFRACTION 1. List four properties of the image formed by a plane mirror. Properties of image formed by a plane mirror: 1. It is always virtual and erect. 2. Its size is equal to that

More information

Optics Practice. Version #: 0. Name: Date: 07/01/2010

Optics Practice. Version #: 0. Name: Date: 07/01/2010 Optics Practice Date: 07/01/2010 Version #: 0 Name: 1. Which of the following diagrams show a real image? a) b) c) d) e) i, ii, iii, and iv i and ii i and iv ii and iv ii, iii and iv 2. A real image is

More information

Test Review # 8. Physics R: Form TR8.17A. Primary colors of light

Test Review # 8. Physics R: Form TR8.17A. Primary colors of light Physics R: Form TR8.17A TEST 8 REVIEW Name Date Period Test Review # 8 Light and Color. Color comes from light, an electromagnetic wave that travels in straight lines in all directions from a light source

More information

PHYS 160 Astronomy. When analyzing light s behavior in a mirror or lens, it is helpful to use a technique called ray tracing.

PHYS 160 Astronomy. When analyzing light s behavior in a mirror or lens, it is helpful to use a technique called ray tracing. Optics Introduction In this lab, we will be exploring several properties of light including diffraction, reflection, geometric optics, and interference. There are two sections to this lab and they may

More information

Chapter 23. Light Geometric Optics

Chapter 23. Light Geometric Optics Chapter 23. Light Geometric Optics There are 3 basic ways to gather light and focus it to make an image. Pinhole - Simple geometry Mirror - Reflection Lens - Refraction Pinhole Camera Image Formation (the

More information

Class-X Assignment (Chapter-10) Light-Reflection & Refraction

Class-X Assignment (Chapter-10) Light-Reflection & Refraction Class-X Assignment (Chapter-10) Light-Reflection & Refraction Q 1. How does light enable us to see an object? Q 2. What is a concave mirror? Q 3. What is the relationship between focal length and radius

More information

LlIGHT REVIEW PART 2 DOWNLOAD, PRINT and submit for 100 points

LlIGHT REVIEW PART 2 DOWNLOAD, PRINT and submit for 100 points WRITE ON SCANTRON WITH NUMBER 2 PENCIL DO NOT WRITE ON THIS TEST LlIGHT REVIEW PART 2 DOWNLOAD, PRINT and submit for 100 points Multiple Choice Identify the choice that best completes the statement or

More information

Optics: Lenses & Mirrors

Optics: Lenses & Mirrors Warm-Up 1. A light ray is passing through water (n=1.33) towards the boundary with a transparent solid at an angle of 56.4. The light refracts into the solid at an angle of refraction of 42.1. Determine

More information

Chapter 9 - Ray Optics and Optical Instruments. The image distance can be obtained using the mirror formula:

Chapter 9 - Ray Optics and Optical Instruments. The image distance can be obtained using the mirror formula: Question 9.1: A small candle, 2.5 cm in size is placed at 27 cm in front of a concave mirror of radius of curvature 36 cm. At what distance from the mirror should a screen be placed in order to obtain

More information

Assignment X Light. Reflection and refraction of light. (a) Angle of incidence (b) Angle of reflection (c) principle axis

Assignment X Light. Reflection and refraction of light. (a) Angle of incidence (b) Angle of reflection (c) principle axis Assignment X Light Reflection of Light: Reflection and refraction of light. 1. What is light and define the duality of light? 2. Write five characteristics of light. 3. Explain the following terms (a)

More information

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A plane mirror is placed on the level bottom of a swimming pool that holds water (n =

More information

c v n = n r Sin n c = n i Refraction of Light Index of Refraction Snell s Law or Refraction Example Problem Total Internal Reflection Optics

c v n = n r Sin n c = n i Refraction of Light Index of Refraction Snell s Law or Refraction Example Problem Total Internal Reflection Optics Refraction is the bending of the path of a light wave as it passes from one material into another material. Refraction occurs at the boundary and is caused by a change in the speed of the light wave upon

More information

Exam 3--PHYS 151--S15

Exam 3--PHYS 151--S15 Name: Class: Date: Exam 3--PHYS 151--S15 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Consider this diagram of the eye and answer the following questions.

More information

Converging and Diverging Surfaces. Lenses. Converging Surface

Converging and Diverging Surfaces. Lenses. Converging Surface Lenses Sandy Skoglund 2 Converging and Diverging s AIR Converging If the surface is convex, it is a converging surface in the sense that the parallel rays bend toward each other after passing through the

More information

Exam 4. Name: Class: Date: Multiple Choice Identify the choice that best completes the statement or answers the question.

Exam 4. Name: Class: Date: Multiple Choice Identify the choice that best completes the statement or answers the question. Name: Class: Date: Exam 4 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Mirages are a result of which physical phenomena a. interference c. reflection

More information

Algebra Based Physics. Reflection. Slide 1 / 66 Slide 2 / 66. Slide 3 / 66. Slide 4 / 66. Slide 5 / 66. Slide 6 / 66.

Algebra Based Physics. Reflection. Slide 1 / 66 Slide 2 / 66. Slide 3 / 66. Slide 4 / 66. Slide 5 / 66. Slide 6 / 66. Slide 1 / 66 Slide 2 / 66 lgebra ased Physics Geometric Optics 2015-12-01 www.njctl.org Slide 3 / 66 Slide 4 / 66 Table of ontents lick on the topic to go to that section Reflection Refraction and Snell's

More information

Types of lenses. Shown below are various types of lenses, both converging and diverging.

Types of lenses. Shown below are various types of lenses, both converging and diverging. Types of lenses Shown below are various types of lenses, both converging and diverging. Any lens that is thicker at its center than at its edges is a converging lens with positive f; and any lens that

More information

Laboratory 7: Properties of Lenses and Mirrors

Laboratory 7: Properties of Lenses and Mirrors Laboratory 7: Properties of Lenses and Mirrors Converging and Diverging Lens Focal Lengths: A converging lens is thicker at the center than at the periphery and light from an object at infinity passes

More information

Academic Year: 2017/2018 Term 3 Physics - Grade 10 Revision sheet Chapter 13: section 1,2,3 / Chapter 14: section 1 pages: ( ),( )

Academic Year: 2017/2018 Term 3 Physics - Grade 10 Revision sheet Chapter 13: section 1,2,3 / Chapter 14: section 1 pages: ( ),( ) Academic Year: 2017/2018 Term 3 Physics - Grade 10 Revision sheet Chapter 13: section 1,2,3 / Chapter 14: section 1 pages: (442-462),(482-487) Spherical curved mirrors : a mirror that has the shape of

More information

Life Science Chapter 2 Study Guide

Life Science Chapter 2 Study Guide Key concepts and definitions Waves and the Electromagnetic Spectrum Wave Energy Medium Mechanical waves Amplitude Wavelength Frequency Speed Properties of Waves (pages 40-41) Trough Crest Hertz Electromagnetic

More information

2. The radius of curvature of a spherical mirror is 20 cm. What is its focal length?

2. The radius of curvature of a spherical mirror is 20 cm. What is its focal length? 1. Define the principle focus of a concave mirror? The principle focus of a concave mirror is a point on its principle axis to which all the light rays which are parallel and close to the axis, converge

More information

12:40-2:40 3:00-4:00 PM

12:40-2:40 3:00-4:00 PM Physics 294H l Professor: Joey Huston l email:huston@msu.edu l office: BPS3230 l Homework will be with Mastering Physics (and an average of 1 hand-written problem per week) Help-room hours: 12:40-2:40

More information

Image Formation. Light from distant things. Geometrical optics. Pinhole camera. Chapter 36

Image Formation. Light from distant things. Geometrical optics. Pinhole camera. Chapter 36 Light from distant things Chapter 36 We learn about a distant thing from the light it generates or redirects. The lenses in our eyes create images of objects our brains can process. This chapter concerns

More information

King Saud University College of Science Physics & Astronomy Dept.

King Saud University College of Science Physics & Astronomy Dept. King Saud University College of Science Physics & Astronomy Dept. PHYS 111 (GENERAL PHYSICS 2) CHAPTER 36: Image Formation LECTURE NO. 9 Presented by Nouf Saad Alkathran 36.1 Images Formed by Flat Mirrors

More information

Topic 1 - What is Light? 1. Radiation is the type of energy transfer which does not require... A matter B heat C waves D light

Topic 1 - What is Light? 1. Radiation is the type of energy transfer which does not require... A matter B heat C waves D light Grade 8 Unit 1 Test Student Class Topic 1 - What is Light? 1. Radiation is the type of energy transfer which does not require... A matter B heat C waves D light 2. Light-producing technologies, such as

More information

Chapter 36. Image Formation

Chapter 36. Image Formation Chapter 36 Image Formation Image of Formation Images can result when light rays encounter flat or curved surfaces between two media. Images can be formed either by reflection or refraction due to these

More information

Chapter 34: Geometrical Optics (Part 2)

Chapter 34: Geometrical Optics (Part 2) Chapter 34: Geometrical Optics (Part 2) Brief review Optical instruments Camera Human eye Magnifying glass Telescope Microscope Optical Aberrations Phys Phys 2435: 22: Chap. 34, 31, Pg 1 The Lens Equation

More information

Lecture 17. Image formation Ray tracing Calculation. Lenses Convex Concave. Mirrors Convex Concave. Optical instruments

Lecture 17. Image formation Ray tracing Calculation. Lenses Convex Concave. Mirrors Convex Concave. Optical instruments Lecture 17. Image formation Ray tracing Calculation Lenses Convex Concave Mirrors Convex Concave Optical instruments Image formation Laws of refraction and reflection can be used to explain how lenses

More information

Lecture 21. Physics 1202: Lecture 21 Today s Agenda

Lecture 21. Physics 1202: Lecture 21 Today s Agenda Physics 1202: Lecture 21 Today s Agenda Announcements: Team problems today Team 14: Gregory Desautels, Benjamin Hallisey, Kyle Mcginnis Team 15: Austin Dion, Nicholas Gandza, Paul Macgillis-Falcon Homework

More information

Chapter 24 Geometrical Optics. Copyright 2010 Pearson Education, Inc.

Chapter 24 Geometrical Optics. Copyright 2010 Pearson Education, Inc. Chapter 24 Geometrical Optics Lenses convex (converging) concave (diverging) Mirrors Ray Tracing for Mirrors We use three principal rays in finding the image produced by a curved mirror. The parallel ray

More information

Information for Physics 1201 Midterm 2 Wednesday, March 27

Information for Physics 1201 Midterm 2 Wednesday, March 27 My lecture slides are posted at http://www.physics.ohio-state.edu/~humanic/ Information for Physics 1201 Midterm 2 Wednesday, March 27 1) Format: 10 multiple choice questions (each worth 5 points) and

More information

SUBJECT: PHYSICS. Use and Succeed.

SUBJECT: PHYSICS. Use and Succeed. SUBJECT: PHYSICS I hope this collection of questions will help to test your preparation level and useful to recall the concepts in different areas of all the chapters. Use and Succeed. Navaneethakrishnan.V

More information

b) (4) If you could look at a snapshot of the waves, how far apart in space are two successive positive peaks of the electric field?

b) (4) If you could look at a snapshot of the waves, how far apart in space are two successive positive peaks of the electric field? General Physics II Exam 3 - Chs. 22 25 - EM Waves & Optics October 20, 206 Name Rec. Instr. Rec. Time For full credit, make your work clear. Show formulas used, essential steps, and results with correct

More information

REFLECTION THROUGH LENS

REFLECTION THROUGH LENS REFLECTION THROUGH LENS A lens is a piece of transparent optical material with one or two curved surfaces to refract light rays. It may converge or diverge light rays to form an image. Lenses are mostly

More information

Dr. Todd Satogata (ODU/Jefferson Lab) Monday, April

Dr. Todd Satogata (ODU/Jefferson Lab)  Monday, April University Physics 227N/232N Mirrors and Lenses Homework Optics 2 due Friday AM Quiz Friday Optional review session next Monday (Apr 28) Bring Homework Notebooks to Final for Grading Dr. Todd Satogata

More information

Chapter 34 Geometric Optics (also known as Ray Optics) by C.-R. Hu

Chapter 34 Geometric Optics (also known as Ray Optics) by C.-R. Hu Chapter 34 Geometric Optics (also known as Ray Optics) by C.-R. Hu 1. Principles of image formation by mirrors (1a) When all length scales of objects, gaps, and holes are much larger than the wavelength

More information

PHYSICS. Chapter 35 Lecture FOR SCIENTISTS AND ENGINEERS A STRATEGIC APPROACH 4/E RANDALL D. KNIGHT

PHYSICS. Chapter 35 Lecture FOR SCIENTISTS AND ENGINEERS A STRATEGIC APPROACH 4/E RANDALL D. KNIGHT PHYSICS FOR SCIENTISTS AND ENGINEERS A STRATEGIC APPROACH 4/E Chapter 35 Lecture RANDALL D. KNIGHT Chapter 35 Optical Instruments IN THIS CHAPTER, you will learn about some common optical instruments and

More information

Science 8 Unit 2 Pack:

Science 8 Unit 2 Pack: Science 8 Unit 2 Pack: Name Page 0 Section 4.1 : The Properties of Waves Pages By the end of section 4.1 you should be able to understand the following: Waves are disturbances that transmit energy from

More information

Physics 222, October 25

Physics 222, October 25 Physics 222, October 25 Key Concepts: Image formation by refraction Thin lenses The eye Optical instruments A single flat interface Images can be formed by refraction, when light traverses a boundary between

More information

CHAPTER 18 REFRACTION & LENSES

CHAPTER 18 REFRACTION & LENSES Physics Approximate Timeline Students are expected to keep up with class work when absent. CHAPTER 18 REFRACTION & LENSES Day Plans for the day Assignments for the day 1 18.1 Refraction of Light o Snell

More information

1. Draw the Ray Diagram, name lens or mirror shown and determine the SALT for each picture

1. Draw the Ray Diagram, name lens or mirror shown and determine the SALT for each picture Honors Physics Chapter 22 and 23 Test Name: 1. Draw the Ray Diagram, name lens or mirror shown and determine the SALT for each picture 2. Type of Mirror above: i. SALT of image: S: A: L: T: b. Type of

More information

Chapter 25. Optical Instruments

Chapter 25. Optical Instruments Chapter 25 Optical Instruments Optical Instruments Analysis generally involves the laws of reflection and refraction Analysis uses the procedures of geometric optics To explain certain phenomena, the wave

More information

CH. 23 Mirrors and Lenses HW# 6, 7, 9, 11, 13, 21, 25, 31, 33, 35

CH. 23 Mirrors and Lenses HW# 6, 7, 9, 11, 13, 21, 25, 31, 33, 35 CH. 23 Mirrors and Lenses HW# 6, 7, 9, 11, 13, 21, 25, 31, 33, 35 Mirrors Rays of light reflect off of mirrors, and where the reflected rays either intersect or appear to originate from, will be the location

More information

Physics 1202: Lecture 19 Today s Agenda

Physics 1202: Lecture 19 Today s Agenda Physics 1202: Lecture 19 Today s Agenda Announcements: Team problems today Team 12: Kervell Baird, Matthew George, Derek Schultz Team 13: Paxton Stowik, Stacey Ann Burke Team 14: Gregory Desautels, Benjamin

More information

Science Focus 8. Light and Optical Systems. Pop Quiz Master (5 questions) for each Topic A C B D C C B C C A D B C A B B C C A C A C D B A C B B C D

Science Focus 8. Light and Optical Systems. Pop Quiz Master (5 questions) for each Topic A C B D C C B C C A D B C A B B C C A C A C D B A C B B C D Science Focus 8 Pop Quiz Master (5 questions) for each Topic Light and Optical Systems Answer Key Science Focus 8 Questions Topics 1. 2. 3. 4. 5. Topic 1 - What is Light? A C B D C Topic 2 Reflection C

More information

Light sources can be natural or artificial (man-made)

Light sources can be natural or artificial (man-made) Light The Sun is our major source of light Light sources can be natural or artificial (man-made) People and insects do not see the same type of light - people see visible light - insects see ultraviolet

More information

PHYSICS FOR THE IB DIPLOMA CAMBRIDGE UNIVERSITY PRESS

PHYSICS FOR THE IB DIPLOMA CAMBRIDGE UNIVERSITY PRESS Option C Imaging C Introduction to imaging Learning objectives In this section we discuss the formation of images by lenses and mirrors. We will learn how to construct images graphically as well as algebraically.

More information

[ Summary. 3i = 1* 6i = 4J;

[ Summary. 3i = 1* 6i = 4J; the projections at angle 2. We calculate the difference between the measured projections at angle 2 (6 and 14) and the projections based on the previous esti mate (top row: 2>\ + 6\ = 10; same for bottom

More information

mirrors and lenses PHY232 Remco Zegers Room W109 cyclotron building

mirrors and lenses PHY232 Remco Zegers Room W109 cyclotron building mirrors and lenses PHY232 Remco Zegers zegers@nscl.msu.edu Room W109 cyclotron building http://www.nscl.msu.edu/~zegers/phy232.html quiz (extra credit) a ray of light moves from air to a material with

More information

Mirrors, Lenses &Imaging Systems

Mirrors, Lenses &Imaging Systems Mirrors, Lenses &Imaging Systems We describe the path of light as straight-line rays And light rays from a very distant point arrive parallel 145 Phys 24.1 Mirrors Standing away from a plane mirror shows

More information

Optics looks at the properties and behaviour of light!

Optics looks at the properties and behaviour of light! Optics looks at the properties and behaviour of light! Chapter 4: Wave Model of Light Past Theories Pythagoras believed that light consisted of beams made up of tiny particles that carried information

More information

General Physics II. Optical Instruments

General Physics II. Optical Instruments General Physics II Optical Instruments 1 The Thin-Lens Equation 2 The Thin-Lens Equation Using geometry, one can show that 1 1 1 s+ =. s' f The magnification of the lens is defined by For a thin lens,

More information

Department of Physics & Astronomy Undergraduate Labs. Thin Lenses

Department of Physics & Astronomy Undergraduate Labs. Thin Lenses Thin Lenses Reflection and Refraction When light passes from one medium to another, part of the light is reflected and the rest is transmitted. Light rays that are transmitted undergo refraction (bending)

More information

Reading: Lenses and Mirrors; Applications Key concepts: Focal points and lengths; real images; virtual images; magnification; angular magnification.

Reading: Lenses and Mirrors; Applications Key concepts: Focal points and lengths; real images; virtual images; magnification; angular magnification. Reading: Lenses and Mirrors; Applications Key concepts: Focal points and lengths; real images; virtual images; magnification; angular magnification. 1.! Questions about objects and images. Can a virtual

More information

Lenses. A transparent object used to change the path of light Examples: Human eye Eye glasses Camera Microscope Telescope

Lenses. A transparent object used to change the path of light Examples: Human eye Eye glasses Camera Microscope Telescope SNC2D Lenses A transparent object used to change the path of light Examples: Human eye Eye glasses Camera Microscope Telescope Reading stones used by monks, nuns, and scholars ~1000 C.E. Lenses THERE ARE

More information

Downloaded from

Downloaded from QUESTION BANK SCIENCE STD-X PHYSICS REFLECTION & REFRACTION OF LIGHT (REVISION QUESTIONS) VERY SHORT ANSWER TYPE (1 MARK) 1. Out of red and blue lights, for which is the refractive index of glass greater?

More information

Chapter 34: Geometric Optics

Chapter 34: Geometric Optics Chapter 34: Geometric Optics It is all about images How we can make different kinds of images using optical devices Optical device example: mirror, a piece of glass, telescope, microscope, kaleidoscope,

More information

Phys214 Fall 2004 Midterm Form A

Phys214 Fall 2004 Midterm Form A 1. A clear sheet of polaroid is placed on top of a similar sheet so that their polarizing axes make an angle of 30 with each other. The ratio of the intensity of emerging light to incident unpolarized

More information

UNIT 12 LIGHT and OPTICS

UNIT 12 LIGHT and OPTICS UNIT 12 LIGHT and OPTICS What is light? Light is simply a name for a range of electromagnetic radiation that can be detected by the human eye. What characteristic does light have? Light is electromagnetic

More information

always positive for virtual image

always positive for virtual image Point to be remembered: sign convention for Spherical mirror Object height, h = always positive Always +ve for virtual image Image height h = Always ve for real image. Object distance from pole (u) = always

More information

PHYSICS 202 EXAM 3 March 31, 2005

PHYSICS 202 EXAM 3 March 31, 2005 PHYSICS 202 EXAM 3 March 31, 2005 NAME: SECTION: 517 518 519 520 Note: 517 Recitation Mon 4:10 518 Recitation Wed 10:20 519 Recitation Wed 8:00 520 Recitation Mon 1:50 There are a total of 11 problems

More information

Lenses- Worksheet. (Use a ray box to answer questions 3 to 7)

Lenses- Worksheet. (Use a ray box to answer questions 3 to 7) Lenses- Worksheet 1. Look at the lenses in front of you and try to distinguish the different types of lenses? Describe each type and record its characteristics. 2. Using the lenses in front of you, look

More information

Unit Two: Light Energy Lesson 1: Mirrors

Unit Two: Light Energy Lesson 1: Mirrors 1. Plane mirror: Unit Two: Light Energy Lesson 1: Mirrors Light reflection: It is rebounding (bouncing) light ray in same direction when meeting reflecting surface. The incident ray: The light ray falls

More information

Unit 3: Energy On the Move

Unit 3: Energy On the Move 14 14 Table of Contents Unit 3: Energy On the Move Chapter 14: Mirrors and Lenses 14.1: Mirrors 14.2: Lenses 14.3: Optical Instruments 14.1 Mirrors How do you use light to see? When light travels from

More information

LIGHT. ENERGY FOR LIFE 2 Presented by- Ms.Priya

LIGHT. ENERGY FOR LIFE 2 Presented by- Ms.Priya LIGHT ENERGY FOR LIFE 2 Presented by- Ms.Priya VOCABULARY 1. Opaque 2. Transparent 3. Translucent 4. Refraction 5. Reflection 6. Ray 7. Image 8. Virtual image 9. Medium 10.Vacuum 11. Lens 12. Spectrum

More information

Average: Standard Deviation: Max: 99 Min: 40

Average: Standard Deviation: Max: 99 Min: 40 1 st Midterm Exam Average: 83.1 Standard Deviation: 12.0 Max: 99 Min: 40 Please contact me to fix an appointment, if you took less than 65. Chapter 33 Lenses and Op/cal Instruments Units of Chapter 33

More information

GIST OF THE UNIT BASED ON DIFFERENT CONCEPTS IN THE UNIT (BRIEFLY AS POINT WISE). RAY OPTICS

GIST OF THE UNIT BASED ON DIFFERENT CONCEPTS IN THE UNIT (BRIEFLY AS POINT WISE). RAY OPTICS 209 GIST OF THE UNIT BASED ON DIFFERENT CONCEPTS IN THE UNIT (BRIEFLY AS POINT WISE). RAY OPTICS Reflection of light: - The bouncing of light back into the same medium from a surface is called reflection

More information

Chapter 2 - Geometric Optics

Chapter 2 - Geometric Optics David J. Starling Penn State Hazleton PHYS 214 The human eye is a visual system that collects light and forms an image on the retina. The human eye is a visual system that collects light and forms an image

More information

Physics 6C. Cameras and the Human Eye. Prepared by Vince Zaccone For Campus Learning Assistance Services at UCSB

Physics 6C. Cameras and the Human Eye. Prepared by Vince Zaccone For Campus Learning Assistance Services at UCSB Physics 6C Cameras and the Human Eye CAMERAS A typical camera uses a converging lens to focus a real (inverted) image onto photographic film (or in a digital camera the image is on a CCD chip). Light goes

More information

The Optics of Mirrors

The Optics of Mirrors Use with Text Pages 558 563 The Optics of Mirrors Use the terms in the list below to fill in the blanks in the paragraphs about mirrors. reversed smooth eyes concave focal smaller reflect behind ray convex

More information

Test Review # 9. Physics R: Form TR9.15A. Primary colors of light

Test Review # 9. Physics R: Form TR9.15A. Primary colors of light Physics R: Form TR9.15A TEST 9 REVIEW Name Date Period Test Review # 9 Light and Color. Color comes from light, an electromagnetic wave that travels in straight lines in all directions from a light source

More information

Optics Review. 2. List the different types of Light/EM Radiation in order of increasing wavelength.

Optics Review. 2. List the different types of Light/EM Radiation in order of increasing wavelength. Optics Review 1. Match the vocabulary words from Column 1 with the choices in Column 2. Column 1 Vocabulary Words Column 2 Choices 1. incandescence A. production of light by friction 2. chemiluminescence

More information

BHARATIYA VIDYA BHAVAN S V M PUBLIC SCHOOL, VADODARA QUESTION BANK

BHARATIYA VIDYA BHAVAN S V M PUBLIC SCHOOL, VADODARA QUESTION BANK BHARATIYA VIDYA BHAVAN S V M PUBLIC SCHOOL, VADODARA QUESTION BANK Ch Light : Reflection and Refraction One mark questions Q1 Q3 What happens when a ray of light falls normally on the surface of a plane

More information