3. Butter paper is an example for object. (A) a transparent (B) a translucent (C) an opaque (D) a luminous

Size: px
Start display at page:

Download "3. Butter paper is an example for object. (A) a transparent (B) a translucent (C) an opaque (D) a luminous"

Transcription

1 SETH ANANDRAM JAIPURIA SCHOOL VASUNDHARA, GHAZIABAD SESSION : OLYMPIAD WORKSHEET CLASS VIII PHYSICS TOPIC : LIGHT 1. We are able to see objects around us because : (A) the objects absorb all the light. (B) the light reflected from the object enters our eyes. (C) light can be refracted. (D) light travels in a straight lines. 2. An object placed 2 m from a plane mirror is shifted by 0.5 m away from the mirror. What Is the distance between the object and its image? (A) 2 m (B) 1.5 m (C) 5 m (D) 3 m 3. Butter paper is an example for object. (A) a transparent (B) a translucent (C) an opaque (D) a luminous 4. If the angle of incidence is 70,then calculate the angle between the incident ray and reflected ray. (A) 50 (B) 140 (C) 120 (D) When the angle between two plane mirrors is 60,how many multiple Images will be formed by the mirrors? (A) 5 (B) 6 (C) 7 (D)8 6. Which of the following part protects the eye and gives it shape? (A) Choroid (B) Sclera (C) Yellow spot (D) Ciliary muscles 7. In a periscope, the reflecting mirrors will be : (A) perpendicular to each other (C) at an angle of 45 (B) parallel to each other (D) at an angle Which of the following statements about human eye is not true? (A) The iris gives a distinct colour to the eye. (B) The yellow spot is extremely sensitive to light. (C) The space between lens and cornea is filled with ciliary muscles. (D) The optic nerve enters the eye near the blind spot. 9. An ideal mirror : (A) absorbs all the light incident on it (B) refracts all the light (C) reflects all the light (D) none of the above 10. Internal reflections of light is prevented in human eye by :

2 (A) iris (B) pupil (C) choroid (D) blind spot 11. The image formed by the eye lens on the retina is : (A) real, upright and enlarge (B) real, upright and diminished (C) real, inverted and diminished (D) virtual, inverted and diminished 12. A series of fast moving still pictures can create an illusion of movement because : (A)the eye can focus on very rapidly changing pictures. (B) eye is thicker than the brain. (C) eye can separate two images only when the interval of separation between them is one tenth of a second. (D) the optical cortex can see through the rapidly moving images. 13. The human eye part which can be used again and again for forming different images is called : (A) iris (B) pupil (C) cornea (D) retina 14. When the distance between the object and the plane mirror increases : (A) the image remains the same (B) the size of the image will become less than the size of the object (C) the distance between the image and the plane mirror increases (D) the distance between the image and the plane mirror decreases 15. The words UNIFIED are flashed in front of mirror.which set of alphabets on laterally inversion seems to appear differently? (A) UIFD (B) NFED (C) FIED (D) UIFE 16. Power of accommodation of eye implies : (A) control intensity (B) prevent internal reflection of light (C) change of focal length of eye lens (D) all the above 17. For a normal eye, in case of an adult, the least distance of distinct vision is : (A) 5 to 8 cm (B) 10 to 15 cm (C) 20 to 25 cm (D) 30 to 35 cm 18. The blind spot of the eye is (A) at the junction of optic nerve and retina (C) on one side of retina (B) on one side of optic nerve (D) in the centre of retina 19. A pond of water appears shallow because of (A) reflection (B) refraction (C) dispersion (D) ciliary muscles 20. Which of these is important for good eyesight? (A) Vitamin A (B) Vitamin B (C) Vitamin C (D) Vitamin C 21. For a person suffering from hypermetropia, the defect is solved by (A) convex lens (B) concave lens (C) cylindrical lens (D) none of these 22. If the focal length of a spherical mirror is 6 cm, the radius of curvature is cm. (A) 12 (B) 6 (C) 3 (D) 9

3 23. A doll is placed between two parallel plane mirrors separated by 60 cm. How many images of the doll will be formed (A) 60 (B) 90 (C) 120 (D) infinite 24. Ravi puts a coin in a metal bowl. It is just out of sight. He then pours water in the bowl. What will happen? (A) The coin will float (B) The coin appears to be bigger (C) The coin comes into view (D) The coin appears to be smaller 25. When a ray of light propagating (in a straight line ) in one transparent medium enter another transparent medium (A) It gains speed (B) It loses speed (C) It neither gains nor loses speed (D) Its speed in second medium depends upon relative refractive index for a given pair 26. The phenomenon of dispersion is not visible in a (i) prism (i) glass slab (iii) mirror (A) (i) & (ii) (B) (i) (C) (iii) (D) (ii) & (iii) 27. United Football Club arer playing an evening match. The team jersey has blue and white stripes.what colour would the stripes would the stripes appear under floodlights which produce a yellow light? (A) Black and yellow (B) Blue and white (C) Blue and yellow (D) Black and white 28. Splitting of light into its constituents colours is known as (A) Scattering (B) Absorption (C) dispersion (D) Reflection 29. Which of the following states the second law of reflection correctly? (A) Incident ray, reflected ray and normal drawn at the point of incidence to the reflecting surface, lie in the same plane (B) Incident ray,reflected ray and the normal are perpendicular to each other (C) Incident ray and reflected ray lie in the same plane which are perpendicular to the Normal drawn at the point of incidence (D) None of the above 30. How is an opaque object different from a translucent object? (A) A translucent object is liquid, an opaque one is solid. (B) Light can partially pass through a translucent object while it cannot pass through an opaque object. (C) Light cannot pass through an opaque object but can pass through a translucent. object (D) None of these. Direction : (Q ) Pick the odd one out : 31. (A) solar cooker (B) satellite dish (C) reflecting telescope (D) wing mirrors 32. (A) measuring instruments (B) projecting lamps (C) kaleidoscope (D) periscope

4 Direction : (Q33 34) Select the correct statement : 33. (A)The iris is the outer coat of the eye (B) It is behind the cornea (C) The size of the pupil is controlled by the iris (C) The cornea gives the iris its colour 34. (A) Cones are sensitive to bright light (A) Rods are sensitive to light (C) Cones sense darkness (D) Rods sense colour 35. A ray of light is reflected at a plane mirror.which pair of angle of incidence and angle reflection is correct? Angle of incidence Angle of reflection (A) (B) (C) (D)

5

EDULABZ INTERNATIONAL. Light ASSIGNMENT

EDULABZ INTERNATIONAL. Light ASSIGNMENT Light ASSIGNMENT 1. Fill in the blank spaces by choosing the correct words from the list given below : List : compound microscope, yellow, telescope, alter, vitreous humour, time, photographic camera,

More information

Lenses. Images. Difference between Real and Virtual Images

Lenses. Images. Difference between Real and Virtual Images Linear Magnification (m) This is the factor by which the size of the object has been magnified by the lens in a direction which is perpendicular to the axis of the lens. Linear magnification can be calculated

More information

Lenses. A lens is any glass, plastic or transparent refractive medium with two opposite faces, and at least one of the faces must be curved.

Lenses. A lens is any glass, plastic or transparent refractive medium with two opposite faces, and at least one of the faces must be curved. PHYSICS NOTES ON A lens is any glass, plastic or transparent refractive medium with two opposite faces, and at least one of the faces must be curved. Types of There are two types of basic lenses. (1.)

More information

L. R. & S. M. VISSANJI ACADEMY SECONDARY SECTION PHYSICS-GRADE: VIII OPTICAL INSTRUMENTS

L. R. & S. M. VISSANJI ACADEMY SECONDARY SECTION PHYSICS-GRADE: VIII OPTICAL INSTRUMENTS L. R. & S. M. VISSANJI ACADEMY SECONDARY SECTION - 2016-17 PHYSICS-GRADE: VIII OPTICAL INSTRUMENTS SIMPLE MICROSCOPE A simple microscope consists of a single convex lens of a short focal length. The object

More information

Grade 8. Light and Optics. Unit exam

Grade 8. Light and Optics. Unit exam Grade 8 Light and Optics Unit exam Unit C - Light and Optics 1. Over the years many scientists have contributed to our understanding of light. All the properties listed below about light are correct except:

More information

Refraction of Light. Refraction of Light

Refraction of Light. Refraction of Light 1 Refraction of Light Activity: Disappearing coin Place an empty cup on the table and drop a penny in it. Look down into the cup so that you can see the coin. Move back away from the cup slowly until the

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

Chapter Human Vision

Chapter Human Vision Chapter 6 6.1 Human Vision How Light Enters the Eye Light enters the eye through the pupil. The pupil appears dark because light passes through it without reflecting back Pupil Iris = Coloured circle of

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

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

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

Class 10 Science NCERT Exemplar Solutions Human Eye and Colourful World

Class 10 Science NCERT Exemplar Solutions Human Eye and Colourful World Class 10 Science NCERT Exemplar Solutions Human Eye and Colourful World Short Answer Questions Question 1. A student sitting at the back of the classroom cannot read clearly the letters written on the

More information

Topic 4: Lenses and Vision. Lens a curved transparent material through which light passes (transmit) Ex) glass, plastic

Topic 4: Lenses and Vision. Lens a curved transparent material through which light passes (transmit) Ex) glass, plastic Topic 4: Lenses and Vision Lens a curved transparent material through which light passes (transmit) Ex) glass, plastic Double Concave Lenses Are thinner and flatter in the middle than around the edges.

More information

Wonders of Light - Part I

Wonders of Light - Part I 6. Wonders of Light - Part I Light : The fastest physical quantity, which is an electromagnetic radiation travelling with the speed of 3 0 8 m/s. SCHOOL SECTION 25 SCIENCE & TECHNOLOGY MT EDUCARE LTD.

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

3. Study the diagram given below and answer the questions that follow it:

3. Study the diagram given below and answer the questions that follow it: CH- Human Eye and Colourful World 1. A 14-year old student is not able to see clearly the questions written on the blackboard placed at a distance of 5 m from him. (a) Name the defect of vision he is suffering

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

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

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

Optics Review (Chapters 11, 12, 13)

Optics Review (Chapters 11, 12, 13) Optics Review (Chapters 11, 12, 13) Complete the following questions in preparation for your test on FRIDAY. The notes that you need are in italics. Try to answer it on your own first, then check with

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

The Indian Academy Nehrugram DEHRADUN Question Bank Subject - Physics Class - X

The Indian Academy Nehrugram DEHRADUN Question Bank Subject - Physics Class - X The Indian Academy Nehrugram DEHRADUN Question Bank - 2013-14 Subject - Physics Class - X Section A A- One mark questions:- Q1. Chair, Table are the example of which object? Q2. In which medium does the

More information

Vision. The eye. Image formation. Eye defects & corrective lenses. Visual acuity. Colour vision. Lecture 3.5

Vision. The eye. Image formation. Eye defects & corrective lenses. Visual acuity. Colour vision. Lecture 3.5 Lecture 3.5 Vision The eye Image formation Eye defects & corrective lenses Visual acuity Colour vision Vision http://www.wired.com/wiredscience/2009/04/schizoillusion/ Perception of light--- eye-brain

More information

Use these words to complete the sentences about light: absorb different diffuse focus prism refraction same slower specula transmit

Use these words to complete the sentences about light: absorb different diffuse focus prism refraction same slower specula transmit Aims In the activity you will learn more about how we see, how light interacts with materials, and how we see colour. Task 1: Light Use these words to complete the sentences about light: absorb different

More information

The Human Eye and a Camera 12.1

The Human Eye and a Camera 12.1 The Human Eye and a Camera 12.1 The human eye is an amazing optical device that allows us to see objects near and far, in bright light and dim light. Although the details of how we see are complex, the

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

sclera pupil What happens to light that enters the eye?

sclera pupil What happens to light that enters the eye? Human Vision Textbook pages 202 215 Before You Read Some people can see things clearly from a great distance. Other people can see things clearly only when they are nearby. Why might this be? Write your

More information

SCIENCE 8 WORKBOOK Chapter 6 Human Vision Ms. Jamieson 2018 This workbook belongs to:

SCIENCE 8 WORKBOOK Chapter 6 Human Vision Ms. Jamieson 2018 This workbook belongs to: SCIENCE 8 WORKBOOK Chapter 6 Human Vision Ms. Jamieson 2018 This workbook belongs to: Eric Hamber Secondary 5025 Willow Street Vancouver, BC Table of Contents A. Chapter 6.1 Parts of the eye.. Parts of

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

Unit 3 - Foundations of Waves

Unit 3 - Foundations of Waves Unit 3 - Foundations of Waves Chapter 6 - Light, Mirrors, and Lenses Mr. Palmarin Chapter 6 - Light, Mirrors, and Lenses 1 / 57 Section 6.1 - The Behaviour of Light History of Light Plato (428 BCE - 348

More information

11 Human Eye & colourful world IMPORTANT NOTES ANIL TUTORIALS

11 Human Eye & colourful world IMPORTANT NOTES ANIL TUTORIALS 11 Human Eye & colourful world IMPORTANT NOTES 1. Parts of the Human Eye : (i) Sclerotic is the outermost white fibrous covering of the eye. (ii) Cornea is the transparent front bulging portion of the

More information

HUMAN EYE AND COLOURFUL WORLD

HUMAN EYE AND COLOURFUL WORLD HUMAN EYE AND COLOURFUL WORLD VERY SHORT ANSWER TYPE QUESTIONS [1 Mark] 1. Which phenomenon is responsible for making the path of light visible? Answer. Tyndall effect. 2. State one function of iris in

More information

SCIENCE 8 WORKBOOK Chapter 6 Human Vision Ms. Jamieson 2018 This workbook belongs to:

SCIENCE 8 WORKBOOK Chapter 6 Human Vision Ms. Jamieson 2018 This workbook belongs to: SCIENCE 8 WORKBOOK Chapter 6 Human Vision Ms. Jamieson 2018 This workbook belongs to: Eric Hamber Secondary 5025 Willow Street Vancouver, BC Table of Contents A. Chapter 6.1 Parts of the eye.. Parts of

More information

Downloaded from

Downloaded from CHAPTER 11-HUMAN EYE AND COLOURFUL WORLD Power of accommodation: Ability of the eye lens to adjust its focal length. Relaxation of ciliary muscles lens becomes thin increase in focal length. Contraction

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

Chapter 11 Human Eye and Colourful World Question 1: What is meant by power of accommodation of the eye? When the ciliary muscles are relaxed, the eye lens becomes thin, the focal length increases, and

More information

Chapter 6 Human Vision

Chapter 6 Human Vision Chapter 6 Notes: Human Vision Name: Block: Human Vision The Humane Eye: 8) 1) 2) 9) 10) 4) 5) 11) 12) 3) 13) 6) 7) Functions of the Eye: 1) Cornea a transparent tissue the iris and pupil; provides most

More information

Human Eye and Colourful World Science. Intext Exercise 1

Human Eye and Colourful World Science. Intext Exercise 1 Intext Exercise 1 Question 1: What is meant by power of accommodation of the eye? Solution 1: When the ciliary muscles are relaxed, the eye lens becomes thin, the focal length increases, and the distant

More information

DELHI PUBLIC SCHOOL JALANDHAR. (a) Assignment will be discussed and solved in the Class. ( In Physics Notebook)

DELHI PUBLIC SCHOOL JALANDHAR. (a) Assignment will be discussed and solved in the Class. ( In Physics Notebook) DELHI PUBLIC SCHOOL JALANDHAR DELHI REVISION ASSIGNMENT NO. 3 Instructions: SUBJECT: PHYSICS CLASS:10 Previous Year Questions (Miscellaneous ) (a) Assignment will be discussed and solved in the Class.

More information

Mastery. Chapter Content. What is light? CHAPTER 11 LESSON 1 C A

Mastery. Chapter Content. What is light? CHAPTER 11 LESSON 1 C A Chapter Content Mastery What is light? LESSON 1 Directions: Use the letters on the diagram to identify the parts of the wave listed below. Write the correct letters on the line provided. 1. amplitude 2.

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

Introduction. Strand F Unit 3: Optics. Learning Objectives. Introduction. At the end of this unit you should be able to;

Introduction. Strand F Unit 3: Optics. Learning Objectives. Introduction. At the end of this unit you should be able to; Learning Objectives At the end of this unit you should be able to; Identify converging and diverging lenses from their curvature Construct ray diagrams for converging and diverging lenses in order to locate

More information

Name Class Date. Use the terms from the following list to complete the sentences below. Each term may be used only once. Some terms may not be used.

Name Class Date. Use the terms from the following list to complete the sentences below. Each term may be used only once. Some terms may not be used. Assessment Chapter Test B Light and Our World USING KEY TERMS Use the terms from the following list to complete the sentences below. Each term may be used only once. Some terms may not be used. concave

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

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

Physical Science Physics

Physical Science Physics Name Physical Science Physics C/By Due Date Code Period Earned Points PSP 5W4 Seeing Problems (divide by 11) Multiple Choice Identify the letter of the choice that best completes the statement or answers

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

Sense Organs (Eye) The eye is the sense organ of sight. The eye is shaped like a ball and is located in bony

Sense Organs (Eye) The eye is the sense organ of sight. The eye is shaped like a ball and is located in bony Sense Organs (Eye) The eye is the sense organ of sight. The eye is shaped like a ball and is located in bony sockets in the skull. It is held in place by six muscles which are joined to the outside of

More information

Instructional Resources/Materials: Light vocabulary cards printed (class set) Enough for each student (See card sort below)

Instructional Resources/Materials: Light vocabulary cards printed (class set) Enough for each student (See card sort below) Grade Level/Course: Grade 7 Life Science Lesson/Unit Plan Name: Light Card Sort Rationale/Lesson Abstract: Light vocabulary building, students identify and share vocabulary meaning. Timeframe: 10 to 20

More information

Exam 3--PHYS 2021M-Spring 2009

Exam 3--PHYS 2021M-Spring 2009 Name: Class: Date: Exam 3--PHYS 2021M-Spring 2009 Multiple Choice Identify the choice that best completes the statement or answers the question Each question is worth 2 points 1 Images made by mirrors

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

OPTICAL SYSTEMS OBJECTIVES

OPTICAL SYSTEMS OBJECTIVES 101 L7 OPTICAL SYSTEMS OBJECTIVES Aims Your aim here should be to acquire a working knowledge of the basic components of optical systems and understand their purpose, function and limitations in terms

More information

Chapter Introduction. Chapter Wrap-Up. and the Eye

Chapter Introduction. Chapter Wrap-Up. and the Eye Chapter Introduction Lesson 1 Lesson 2 Lesson 3 Sound Light Chapter Wrap-Up Mirrors, Lenses, and the Eye How do sound and light waves travel and interact with matter? What do you think? Before you begin,

More information

HUMAN EYE AND COLOURFUL WORLD Notes Physics - Grade 10

HUMAN EYE AND COLOURFUL WORLD Notes Physics - Grade 10 HUMAN EYE AND COLOURFUL WORLD Notes Physics - Grade 10 Human Eye Eye is one of the most sensitive sense organs in the human body. Our eye enables us to see this beautiful world. It consists of a lens,

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

Physics 11. Unit 8 Geometric Optics Part 2

Physics 11. Unit 8 Geometric Optics Part 2 Physics 11 Unit 8 Geometric Optics Part 2 (c) Refraction (i) Introduction: Snell s law Like water waves, when light is traveling from one medium to another, not only does its wavelength, and in turn the

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

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

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

Ch. 18 Notes 3/28/16

Ch. 18 Notes 3/28/16 Section 1 Light & Color: Vocabulary Transparent material: transmits most of the light that strikes it. Light passes through without being scattered, so you can see clearly what is on the other side. Ex.

More information

Chapter 23 Study Questions Name: Class:

Chapter 23 Study Questions Name: Class: Chapter 23 Study Questions Name: Class: Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. When you look at yourself in a plane mirror, you

More information

Light and Applications of Optics

Light and Applications of Optics UNIT 4 Light and Applications of Optics Topic 4.1: What is light and how is it produced? Topic 4.6: What are lenses and what are some of their applications? Topic 4.2 : How does light interact with objects

More information

BASANT S PHYSICS STUDY MATERIAL SUB- HUMAN EYE AND COLOURFUL WORLD =================================================== ============

BASANT S PHYSICS STUDY MATERIAL SUB- HUMAN EYE AND COLOURFUL WORLD =================================================== ============ BASANT S PHYSICS Mob: 9777702608 STUDY MATERIAL SUB- HUMAN EYE AND COLOURFUL WORLD =================================================== ============ Very Short Answer Type Questions 1. What is the least

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:1200 LECTURE 31 LIGHT AND OPTICS (3)

PHYS:1200 LECTURE 31 LIGHT AND OPTICS (3) 1 PHYS:1200 LECTURE 31 LIGHT AND OPTICS (3) In lecture 30, we applied the law of reflection to understand how images are formed using plane and curved mirrors. In this lecture we will use the law of refraction

More information

Refraction, Lenses, and Prisms

Refraction, Lenses, and Prisms CHAPTER 16 14 SECTION Sound and Light Refraction, Lenses, and Prisms KEY IDEAS As you read this section, keep these questions in mind: What happens to light when it passes from one medium to another? How

More information

h = v h 2 = height of the object is negative for inverted image and positive for erect image. is always positive. Direction of incident light

h = v h 2 = height of the object is negative for inverted image and positive for erect image. is always positive. Direction of incident light 6. C a p t e r at G l a n c e Ligt related penomena can be studied wit mirrors and lenses. A mirror is a reflecting surface wile a lens is a transparent material. Mirrors are mainly of tree types : plane

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

Photography (cont d)

Photography (cont d) Lecture 13 Ch. 4 Photography continued Ch. 5 The Eye Feb. 23, 2010 Exams will be back on Feb. 25 Homework 5 is due Feb. 25 Read all of Ch. 5. on The Eye. 1 Photography (cont d) Polarizing and haze filters

More information

Refraction and Lenses

Refraction and Lenses Refraction and Lenses Name Q.(a) Figure shows a ray of light entering a glass block. (i) The angle of incidence in Figure is labelled with the letter i. On Figure, use the letter r to label the angle of

More information

CHAPTER 11 The Hyman Eye and the Colourful World In this chapter we will study Human eye that uses the light and enable us to see the objects. We will also use the idea of refraction of light in some optical

More information

1. The convex lens will magnify the print, provided the object is not placed beyond 2F, While the concave lens will shrink the print image.

1. The convex lens will magnify the print, provided the object is not placed beyond 2F, While the concave lens will shrink the print image. 1 P a g e Grade 8 SCIENCE CHATER 6 QUESTIONS 6.1 A page 215 What Did You Find Out? Answers 1. The convex lens will magnify the print, provided the object is not placed beyond 2F, While the concave lens

More information

Notes: Light and Optics. Reflection. Refraction. Law of Reflection. Light goes straight 12/13/2012

Notes: Light and Optics. Reflection. Refraction. Law of Reflection. Light goes straight 12/13/2012 Notes: Light and Optics Light goes straight Light travels in a straight line unless it interacts with a medium. The material through which a wave travels is called a medium. Light can be reflected, refracted

More information

The Hyman Eye and the Colourful World

The Hyman Eye and the Colourful World The Hyman Eye and the Colourful World In this chapter we will study Human eye that uses the light and enable us to see the objects. We will also use the idea of refraction of light in some optical phenomena

More information

Chapter: Sound and Light

Chapter: Sound and Light Table of Contents Chapter: Sound and Light Section 1: Sound Section 2: Reflection and Refraction of Light Section 3: Mirrors, Lenses, and the Eye Section 4: Light and Color 1 Sound Sound When an object

More information

12.1. Human Perception of Light. Perceiving Light

12.1. Human Perception of Light. Perceiving Light 12.1 Human Perception of Light Here is a summary of what you will learn in this section: Focussing of light in your eye is accomplished by the cornea, the lens, and the fluids contained in your eye. Light

More information

Exemplar for Internal Achievement Standard Level 2

Exemplar for Internal Achievement Standard Level 2 Exemplar for internal assessment resource Physics 2.2A for Achievement Standard 91169 Exemplar for Internal Achievement Standard 91169 Level 2 This exemplar supports assessment against: Achievement Standard

More information

Chapter 25: Applied Optics. PHY2054: Chapter 25

Chapter 25: Applied Optics. PHY2054: Chapter 25 Chapter 25: Applied Optics PHY2054: Chapter 25 1 Operation of the Eye 24 mm PHY2054: Chapter 25 2 Essential parts of the eye Cornea transparent outer structure Pupil opening for light Lens partially focuses

More information

Physics II. Chapter 23. Spring 2018

Physics II. Chapter 23. Spring 2018 Physics II Chapter 23 Spring 2018 IMPORTANT: Except for multiple-choice questions, you will receive no credit if you show only an answer, even if the answer is correct. Always show in the space on your

More information

Downloaded from

Downloaded from HUMAN EYE AND COLOURFUL WORLD IMPORTANT QUESTIONS 1 Mark Questions Q.l. Q.2. Q.3. Q.4. Q.5. Q.6. What is the defect from which the eye shown in the figure suffers? The image of an object near the eye is

More information

Practice Problems for Chapter 25-26

Practice Problems for Chapter 25-26 Practice Problems for Chapter 25-26 1. What are coherent waves? 2. Describe diffraction grating 3. What are interference fringes? 4. What does monochromatic light mean? 5. What does the Rayleigh Criterion

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

EYE. The eye is an extension of the brain

EYE. The eye is an extension of the brain I SEE YOU EYE The eye is an extension of the brain Eye brain proxomity Can you see : the optic nerve bundle? Spinal cord? The human Eye The eye is the sense organ for light. Receptors for light are found

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

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

Name: Date: Block: Light Unit Study Guide Matching Match the correct definition to each term. 1. Waves

Name: Date: Block: Light Unit Study Guide Matching Match the correct definition to each term. 1. Waves Name: Date: Block: Light Unit Study Guide Matching Match the correct definition to each term. 1. Waves 2. Medium 3. Mechanical waves 4. Longitudinal waves 5. Transverse waves 6. Frequency 7. Reflection

More information

ID: A. Optics Review Package Answer Section TRUE/FALSE

ID: A. Optics Review Package Answer Section TRUE/FALSE Optics Review Package Answer Section TRUE/FALSE 1. T 2. F Reflection occurs when light bounces off a surface Refraction is the bending of light as it travels from one medium to another. 3. T 4. F 5. T

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

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

Name: Date: Waves and Electromagnetic Spectrum, Sound Waves, and Light Waves Study Guide For Final

Name: Date: Waves and Electromagnetic Spectrum, Sound Waves, and Light Waves Study Guide For Final Name: Date: Waves and Electromagnetic Spectrum, Sound Waves, and Light Waves Study Guide For Final Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A disturbance

More information

General Physics - E&M (PHY 1308) - Lecture Notes. General Physics - E&M (PHY 1308) Lecture Notes

General Physics - E&M (PHY 1308) - Lecture Notes. General Physics - E&M (PHY 1308) Lecture Notes General Physics - E&M (PHY 1308) Lecture Notes Lecture 036: Application of Lenses - the Human Eye SteveSekula, 1 December 2010 (created 30 November 2010) Goals of this lecture no tags conclude the discussion

More information

REFRACTION OF LIGHT VERY SHORT ANSWER QUESTIONS

REFRACTION OF LIGHT VERY SHORT ANSWER QUESTIONS REFRACTION OF LIGHT VERY SHORT ANSWER QUESTIONS Q-1. The earth takes 24 h to rotate once about its axis. How much time does the sun take to shift by 1 0 when viewed from the earth? Q-2. What is the maximum

More information

ii) When light falls on objects, it reflects the light and when the reflected light reaches our eyes then we see the objects.

ii) When light falls on objects, it reflects the light and when the reflected light reaches our eyes then we see the objects. Light i) Light is a form of energy which helps us to see objects. ii) When light falls on objects, it reflects the light and when the reflected light reaches our eyes then we see the objects. iii) Light

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

EYE STRUCTURE AND FUNCTION

EYE STRUCTURE AND FUNCTION Name: Class: Date: EYE STRUCTURE AND FUNCTION The eye is the body s organ of sight. It gathers light from the environment and forms an image on specialized nerve cells on the retina. Vision occurs when

More information

Light enables organisms

Light enables organisms Chapter 15. Light 1. What does light do? Sunlight causes the day. Moonlight is a reflection of Sunlight. It shines to dispel the darkness of the night. Light enables organisms to see during day and night.

More information

Physics Chapter Review Chapter 25- The Eye and Optical Instruments Ethan Blitstein

Physics Chapter Review Chapter 25- The Eye and Optical Instruments Ethan Blitstein Physics Chapter Review Chapter 25- The Eye and Optical Instruments Ethan Blitstein The Human Eye As light enters through the human eye it first passes through the cornea (a thin transparent membrane of

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

LIGHT REFLECTION AND REFRACTION

LIGHT REFLECTION AND REFRACTION LIGHT REFLECTION AND REFRACTION REFLECTION OF LIGHT A highly polished surface, such as a mirror, reflects most of the light falling on it. Laws of Reflection: (i) The angle of incidence is equal to the

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