CBSE Class 8 Science Chapter 13 Light MCQs

by

CBSE Class 8 Science Chapter 13 Light Multiple Choice Questions

Question 1. We can see a non-luminous object when light

  1. Emitted by the object falls on the eye
  2. Is reflected from the object towards our eye
  3. Completely passes through the object
  4. Gets completely absorbed by the object

Answer: 2. Is reflected from the object towards our eye

Read And Learn More CBSE Class 8 Science Multiple Choice Questions

Question 2. Angle of incidence is equal to the angle of reflection.

  1. Always
  2. Sometimes
  3. Under special conditions
  4. Never

Answer: 1. Always

” CBSE Class 8 Science Chapter 13 MCQs “

CBSE Class 8 Science Chapter 13 Light MCQs

” Angle Of Incidence And Reflection “

Question 3. Image formed by a plane mirror is

  1. Virtual, behind the mirror and enlarged
  2. Virtual, behind the mirror and of the same size as the object
  3. Real at the surface of the mirror and enlarged
  4. Real, behind the mirror and of the same size as the object

Answer: 2. Virtual, behind the mirror and of the same size as the object

” Light MCQs For Class 8 CBSE “

Question 4. Which of these objects reflects light?

  1. The sun
  2. The moon
  3. A glowing bulb
  4. Burning wood

Answer: 2. The moon

Question 5. A tiny mirror Mis fixed on a piece of cardboard placed on a table. The cardboard is illuminated by light from a bulb. The position of eye with respect to position of bulb is shown in figure as A, B, C and D. In which position, mirror will be visible?

CBSE Class 8 Science Chapter 13 Right Angle Diagram

  1. A
  2. C
  3. B
  4. D

Answer: 1. A

” Reflection Of Light Class 8 “

Question 6. Two mirrors A and B are placed at right angles to each other as shown In figure.

CBSE Class 8 Science Chapter 13 Surface Comparison Representation

A ray of light incident on mirror A at an angle of 20° falls on mirror Bafter reflection. The angle of reflection for the ray reflected from mirror B would be

  1. 25°
  2. 70°
  3. 50°
  4. 115°

Answer: 2. 70°

CBSE Class 8 Science Chapter 13 Light Multiple Choice Questions

Question 7. A small hole P Is made In a piece of cardboard. The hole Is Illuminated by a torch as shown in figure. The pencil of light coming out of the hole falls on a mirror

At which point should the eye be placed so that the hole can be seen?

  1. A
  2. B
  3. C
  4. D

Answer: 1. A

” Laws Of Reflection Class 8 “

Question 8. Light is falling on surfaces Si, % S3 as shown in figure.

Surfaces on which the angle of incidence is equal to the angle of reflection is/are

  1. Only S1
  2. S1 and S2
  3. S2 and S3
  4. All the three surfaces

Answer: 4. All the three surfaces

Question 9. As the angle between two plane mirrors is decreasing gradually, the number of Images of an object placed between them

  1. First increases then decreases
  2. First decreases then increases
  3. Increases
  4. Decreases

Answer: 3. Increases

” Image Formation By Plane Mirror “

Question 10. How does the eye change To focus on near or distant objects?

  1. The eye lens moves in or out
  2. The retina moves in or out
  3. The eye lens becomes thicker or thinner
  4. The pupil becomes larger or smaller

Answer: 3. The eye lens becomes thicker or thinner

Leave a Comment