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 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: 8 | Science |
| Chapter: 13 | Light |
| Contents: | MCQ with Answers and Explanation |
| Academic Session: | 2024-25 |
MCQ Tests with Answers for Class 8 Science Chapter 13
Q1
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.
Q2
Part of the eye which controls the entering of light is called
[A]. Iris
[B]. Cornea
[C]. Lens
[D]. Retina
Q3
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.
Q4
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.
Q5
Paheli is writing some statements, choose the correct statement and help her:
[A]. The normal is a line which is perpendicular to the mirror surface at the point of incidence.
[B]. The angle between incident ray and the normal is called the angle of incidence.
[C]. The angle between reflected ray and normal is called the angle of reflection.
[D]. All the above.
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
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
Which of the following is a non-luminous object?
[A]. Sun
[B]. Star
[C]. Moon
[D]. Fire
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
How does the eye change in order to focus on near or distant objects?
[A]. The lens moves in or out
[B]. The retina moves in or out
[C]. The lens becomes thicker or thinner
[D]. The pupil becomes larger or smaller
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
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
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
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
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
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
