Updated on June 12, 2023
by Tiwari Academy
by Tiwari Academy
Class 8 Science Chapter 13 MCQ (Multiple Choice Questions) of Light free to use without any login or password updated for new academic session 2025-26. 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: 8 | Science |
| Chapter: 13 | Light |
| Contents: | MCQ with Answers and Explanation |
| Academic Session: | 2025-26 |
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
We can see a non-luminous object when the light:
[A]. Emitted by the object falls on the eye.
[B]. Is reflected from the object towards our eye.
[C]. Completely passes through the object.
[D]. Gets completely absorbed by the object.
Q6
Boojho is doing his homework which is given by his teacher. Would you help him to choose the correct sentences?
[A]. The incident ray, the reflected ray and the normal, all lie in the same plane.
[B]. The angle of reflection is always equal to the angle of incidence.
[C]. If we change the angle of incidence, the angle of reflection will also change accordingly.
[D]. All the above.
Q7
Which of the following statements is correct regarding rods and cones in the human eye?
[A]. Cones are sensitive to dim light.
[B]. Cones are sensitive to bright light.
[C]. Rods are sensitive to bright light.
[D]. Rods can sense color.
Q8
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.
Q9
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°
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
A device which works on the reflection of light from two plane mirrors arranged parallel to one another is:
[A]. Electroscope
[B]. Kaleiodoscope
[C]. Periscope
[D]. Stethoscope
Q13
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
Q14
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
Q15
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
Q16
Consider the following statements and choose the correct one:
[A]. Rods are the rod-shaped cells present in the retina of an eye which are sensitive to dim light.
[B]. Cones are the cone shaped cells present in the retina of an eye which are sensitive to bright light or normal light.
[C]. The blind spot is a small area of the retina insensitive to light where the optic nerve leaves the eye.
[D]. All the above.
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
Read the following sentences carefully, and choose the correct one:
[A]. The retina is a screen on which the image is formed in the eye.
[B]. The eye-lens focuses the image of an object on the retina.
[C]. The optic nerve carries the image formed on retina to the brain in the form of electrical signals.
[D]. All the above.
Q19
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
Q20
Recently, in a science class test, you are asked a question where you have to say whether the statements are correct or not?
[A]. The eye lens is a convex lens made of a transparent and flexible material like jelly.
[B]. The eye lens is held in position by ciliary muscles.
[C]. The ciliary muscles can change the curvature of eye-lens and make it thin or thick according to the need of the eye.
[D]. All the above.
Q21
The size of the pupil of the eye is adjusted by:
[A]. Cornea
[B]. Ciliary muscles
[C]. Optic nerve
[D]. Iris
Q22
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.
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
A person cannot see the distant object clearly (through he can see the nearby objects clearly). He is suffering from the defect of vision called:
[A]. Hypermetropia
[B]. Myopia
[C]. Night blindness
[D]. Cataract
Q25
The impression or sensation remains on the retina for about how many seconds even after removal of the object.
[A]. 1 second
[B]. 1/16th of a second
[C]. 16 seconds
[D]. 1 minute
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Last Edited: June 12, 2023
