• Light, Shadow and Reflection (Class VI)
Back
0

Light, Shadow and Reflection (Class VI)

Description: Light shadows and reflection
Number of Questions: 20
Created by:
Tags: Light shadows and reflection Different Types of Objects Classification of Plants into Herbs, Shrubs and Trees Pinhole Camera and its Application Pinhole Camera and Its Application Leaf and Its Structure Concept of Shadow Stem and Its Functions Mirror and Reflection Function of Leaf
Start the Quiz
Attempted 0/20 Correct 0 Score 0
‹
›

Why is there some light on Earth even on a dark, cloudy day?

  1. Clouds are transparent.

  2. Clouds are opaque.

  3. Clouds are translucent.

  4. Clouds are luminous.

  5. -

Show answer
Correct Option: C
Explanation:

This is the correct answer. Clouds are translucent which allows some of the sunlight to pass through them.

Non-luminous objects are visible because they ______________________.

  1. reflect light into our eyes

  2. pass light through them

  3. reflect light in one direction

  4. do not reflect light

  5. -

Show answer
Correct Option: A
Explanation:

This is the correct answer. When light falls on non-luminious objects some amount of light is reflected back in our direction, as a result we can see the object.

What is meant by 'rectilinear propagation of light'?

  1. Light travels in a curved line.

  2. Light can bend around the corners.

  3. Light travels in a straight line.

  4. Light passes through opaque objects.

  5. -

Show answer
Correct Option: C
Explanation:

This is the correct answer. Light does travel in straight line as it casts shadow of opaque object which falls in its path.

Which of the following is not true?

  1. Pinhole is small in pinhole camera.

  2. Image in pinhole camera is the same colour as the object.

  3. Image in pinhole camera is virtual.

  4. Pinhole camera is used for real time viewing.

  5. -

Show answer
Correct Option: C
Explanation:

This is the correct answer as the statement is false. Image is real in pinhole camera.

(a) Real (b) Virtual (c) Inverted (d) Magnified

What is the nature of the image formed by a pinhole camera?

  1. Both b and c

  2. Both a and c

  3. Both b and d

  4. Both a and d

  5. -

Show answer
Correct Option: B
Explanation:

This is the correct answer. The image is real and inverted.

(a) Sun, candle (b) Candle, stars (c) Stars, firefly (d) Sun, torch

Identify the pair with natural sources of light.

  1. (b)

  2. (c)

  3. (a)

  4. (d)

  5. -

Show answer
Correct Option: B
Explanation:

This is the correct answer. Stars and firefly both are natural source of light.

Match the following ||| |---|---| |(a) Erect|(i) Image cannot be obtained on screen.| |(b) Real|(ii) Image is upside down.| |(c) Virtual|(iii) Image can be obtained on a screen.| |(d) Inverted|(iv) Image is same side up.|

  1. (a) - (iv), (b) - (ii), (c) - (i), (d) - (iii)

  2. (a) - (iv), (b) - (iii), (c) - (i), (d) - (ii)

  3. (a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)

  4. (a) - (i), (b) - (iii), (c) - (iv), (d) - (ii)

  5. -

Show answer
Correct Option: B
Explanation:

This is the correct answer. All options are matched correctly.

What type of image does a plane mirror form?

  1. Inverted image

  2. Virtual image

  3. Real image

  4. Magnified image

  5. -

Show answer
Correct Option: B
Explanation:

This is the correct answer. Image formed in th plane mirror is virtual and cannot be obtained on the screen.

Match the following |||| |---|---|---| |Objects |Property |Examles| |(a) Translucent|(i) Allows all light to pass through it|(x) Frosted glass| |(b) Opaque|(ii) Allows some light to pass through it|(y) Glass| |(c) Transparent|(iii) Allows no light to pass through it|(z) Steel glass|

  1. (a) - (iii) - (z); (b) - (ii) - (y); (c) - (i) - (x)

  2. (a) - (i) - (y); (b) - (iii) - (z); (c) - (ii) - (x)

  3. (a) - (ii) - (x); (b) - (i) - (y); (c) - (iii) - (z)

  4. (a) - (ii) - (x); (b) - (iii) - (z); (c) - (i) - (y)

  5. -

Show answer
Correct Option: D
Explanation:

This is the correct. All the options are matched correctly.

Which of the following characteristics is not exhibited by the shadow of an object?

  1. Can be formed on screen.

  2. Same colour as the object.

  3. It is erect.

  4. It can be bigger than the object.

  5. -

Show answer
Correct Option: B
Explanation:

This is the correct answer as the statement is false. Shadows are always black in colour.

Light hitting the mirror is called ___________ and light leaving the mirror is called __________.

  1. reflected ray, incident ray

  2. reflected ray, refracted ray

  3. incident ray, refracted ray

  4. incident ray, reflected ray

  5. -

Show answer
Correct Option: D
Explanation:

This is the correct answer. Light hitting the mirror is called incident ray and leaving is called reflected ray.

The shadow of an object is ____________ in the noon and ___________ in the evening.

  1. longest, shortest

  2. diminished, longest

  3. shortest, diminished

  4. shortest, longest

  5. -

Show answer
Correct Option: D
Explanation:

This is the correct answer. Shadow of the object is shortest at the noon time as the sun is overhead and longest at the evening as the sun is far.

a. Plane glass window pane b. Butter paper c. Aluminium sheet d. Ground glass

Which of the above are translucent materials?

  1. b and d

  2. a and d

  3. a and c

  4. b and c

  5. -

Show answer
Correct Option: A
Explanation:

This is the correct answer. Butter paper and ground glass allows some light pass through them, so they are caleed translucent materials. 

A soldier sitting in a trench will use which of the following devices to observe enemy activities above the ground?

  1. Telescope

  2. Microscope

  3. Stethoscope

  4. Periscope

  5. -

Show answer
Correct Option: D
Explanation:

This is the correct answer. Periscope is used to view things higher than the sight.

What type of screen is used in a pinhole camera?

  1. Opaque

  2. Translucent

  3. Transparent

  4. Plane mirror

  5. -

Show answer
Correct Option: B
Explanation:

This is the correct answer. Screen is translucent in pinhole camera.

a. Plane mirror b. Piece of paper c. Leather bag d. Still water

Which of the above will produce diffused reflection of light?

  1. b and c

  2. a and d

  3. a and c

  4. b and d

  5. -

Show answer
Correct Option: A
Explanation:

This is the correct answer. Option band c have a rough surface hence they will produce diffused reflection of light. 

In which of the following is a virtual image formed?

  1. Pinhole camera

  2. Cinema screen

  3. Plane mirror

  4. Camera

  5. -

Show answer
Correct Option: C
Explanation:

This is the correct answer. Plane mirror forms virtual image which cannot be obtain on the screen.

If an object is white, what will be the colour of the shadow?

  1. White

  2. Brown

  3. Black

  4. Blue

  5. -

Show answer
Correct Option: C
Explanation:

This is correct. Irrespective of the colour of the object, shadow is always black in colour.

a. Plane mirrors are used in houses to view ourselves. b. Plane mirrors are used to make periscope. c. Plane mirrors are used in shaving. d. Plane mirrors are used in solar cookers.

Which of the above is/are not true?

  1. c

  2. d

  3. a

  4. b

  5. -

Show answer
Correct Option: A
Explanation:

This is the correct answer. For shaving concave mirror is used not the plane mirror to have a magnified view.

a. The image formed in a plane mirror is real. b. The image formed in a plane mirror is virtual. c. The image formed in a plane mirror is laterally inverted. d. The image formed in a plane mirror is not laterally inverted.

Which of the above is/are not true?

  1. a and c

  2. a and d

  3. b and d

  4. b and c

  5. -

Show answer
Correct Option: B
Explanation:

This is the correct answer as both the statements are false . Image formed in the plane mirror is not real and  it is laterally inverted. 

- Hide questions
ADVERTISEMENT

Find more quizzes from top tags

general knowledge
3615 Quizzes
119858 Questions
 technology
307 Quizzes
36705 Questions
 sports
963 Quizzes
19148 Questions
 history
1187 Quizzes
13475 Questions
 physics
598 Quizzes
13441 Questions
 biology
1160 Quizzes
12174 Questions
 science & technology
551 Quizzes
11015 Questions
 chemistry
490 Quizzes
9892 Questions
 maths
518 Quizzes
9324 Questions
 softskills
0 Quizzes
7131 Questions