Class 8 Science Chapter 13 MCQ (Multiple Choice Questions) of Light free to use without any login or password updated for new academic session 2024-25. The complete chapter 13 of class 8 science is covered though NCERT including all the main concepts of the chapter. All the questions are important in examination point of view. Answers and explanation of each equation is also given, so that students can understand easily.

Class 8 Science Chapter 13 MCQ

Class: 8Science
Chapter: 13Light
Contents: MCQ with Answers and Explanation
Academic Session:2024-25

MCQ Tests with Answers for Class 8 Science Chapter 13

Q1

The angle of reflection is equal to the angle of incidence:

[A]. Always
[B]. Sometimes
[C]. Under special conditions
[D]. Never
Q2

Which of the following statement is or are correct?

[A]. Light is a form of energy.
[B]. Light is needed to see things around us.
[C]. We cannot see objects in a dark room or in the darkness of light even when our eyes are wide open.
[D]. All the above.
Q3

Part of the eye which controls the entering of light is called

[A]. Iris
[B]. Cornea
[C]. Lens
[D]. Retina
Q4

Consider the following statements and choose the correct one:

[A]. The objects which emit their own light are called luminous object.
[B]. The objects which do not emit their own light are called non luminous object.
[C]. We can see the non-luminous objects because they reflect light (received from a luminous object) into our eyes.
[D]. All the above.
Q5

Read the following sentences carefully, and choose the correct one:

[A]. The ray of light which falls on the mirror surface is called incident ray.
[B]. The point at which the incident ray strikes the mirror is called the point of incidence.
[C]. The ray of light which is sent back by the mirror is called the reflected ray.
[D]. All the above.
Q6

The least distance of distinct vision for a young adult with normal vision is about:

[A]. 25 m
[B]. 2.5 cm
[C]. 25 cm
[D]. 2.5 m
Q7

Payal is completed her science chapter where she wrote some statements. She wants to know whether the statements are correct or not? Payel wants to take help from you:

[A]. A ray of light which is incident normally on a mirror is reflected back along the same path.
[B]. In regular reflection, a parallel beam of incident light is reflected as a parallel beam in one direction.
[C]. Regular reflection of light occurs from smooth surfaces like that of a plane mirror or highly polished metal surfaces.
[D]. All the above.
Q8

The angle between an incident ray and the plane mirror is 30 degree. The total angle between the incident ray and the reflected ray will be:

[A]. 30°
[B]. 60°
[C]. 90°
[D]. 120°
Q9

The image of an object formed by a plane mirror is:

[A]. Virtual
[B]. Real
[C]. Diminished
[D]. Upside-down
Q10

In a quiz competition, you are asked a question where you have to choose the statement which is/ are correct?

[A]. The image formed by a plane mirror is virtual and erect.
[B]. The image formed by a plane mirror is behind the mirror.
[C]. The image formed in a plane mirror is the same distance behind the mirror as the object is in front of it.
[D]. All the above.
Q11

In a science quiz competition, Payel is asked a question where she had to choose the statement which was/were correct?

[A]. An optical instrument in which reflected light is reflected again is a periscope.
[B]. A periscope is a long, tubular device through which a person can see object that are out of the direct line of sight.
[C]. A periscope works on the reflection of light from two plane mirrors arranged parallel to one another.
[D]. All the above.
Q12

The number of images formed of an object placed between two plane mirrors inclined at right angle to each other is:

[A]. Two
[B]. Five
[C]. One
[D]. Three
Q13

As the angle between two plane mirrors is decreased gradually, the number of images of an object placed between them:

[A]. Increases gradually
[B]. Decreases gradually
[C]. First increases then decreases
[D]. First decreases then increases
Q14

The deficiency of one of the following in the diet of a person for a considerable time can lead to a disease called night blindness. This one is:

[A]. Vitamin B
[B]. Vitamin D
[C]. Vitamin A
[D]. Vitamin C
Q15

Which of the following is not a part of the human eye?

[A]. Retina
[B]. Auditory nerve
[C]. Optic nerve
[D]. Ciliary muscle
Q16

Which of the following change occur when you walk out of bright sunshine into a poorly lit room?

[A]. The pupil becomes larger
[B]. The lens becomes thicker
[C]. The ciliary muscle relaxes
[D]. The pupil becomes smaller
Q17

An incident ray makes an angle of 65 degree with the surface of a plane mirror. The angle of reflection in this case will be:

[A]. 65°
[B]. 45°
[C]. 25°
[D]. 35°
Q18

Which of the following produces diffuse reflection of light?

[A]. Mirror on a dressing table
[B]. Water surface of a pond
[C]. Screen in a cinema hall
[D]. Polished wooden table
Q19

The human eye forms the image of an object at its:

[A]. Cornea
[B]. Iris
[C]. Pupil
[D]. Retina
Q20

The change in converging power of an eye-lens is caused by the action of:

[A]. Iris
[B]. Ciliary muscles
[C]. Optic nerve
[D]. Retina
Q21

Boojho appeared in class test but he confused to know the correct statement. Would you help him to know that?

[A]. Kaleidoscope is an instrument or toy containing inclined plane mirrors which produce multiple reflection of colored glass pieces.
[B]. If an object is placed between two parallel plane mirrors facing each other, then theoretically, an infinite number of images should be formed.
[C]. Kaleidoscope are used by designers of wallpapers and fabrics, as well as by artist to get ideas for new patterns.
[D]. All the above.
Q22

The defect of vision in which the eye-lens of a person gets progressively cloudy resulting in blurred vision is called:

[A]. Myopia
[B]. Night blindness
[C]. Cataract
[D]. Hypermetropia
Q23

Consider the following statements and choose the incorrect one:

[A]. When two plane mirrors are kept inclined at angle, they can form multiple images of an object.
[B]. Two plane mirrors are inclined at an angle of 90 degree from three images of an object placed between them.
[C]. As the angle between the two plane mirrors decreases, the number of images formed increases.
[D]. None of the above
Q24

Read the following sentences carefully, and choose the correct one:

[A]. Periscope is used to see over the heads of a crowd.
[B]. Periscope is used by soldiers sitting in a trench to observe the enemy activities outside.
[C]. Periscope is used by a navy officer sitting in a submarine to see ships over the surface of water in the sea.
[D]. All the above.
Q25

Reflection is:

[A]. Absorption of light rays by the surface of an object
[B]. Passing of light rays through the surface of an object
[C]. Bouncing back of light rays from the surface object
[D]. None of these

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Last Edited: June 12, 2023