MCQ on Light - YB Study

# MCQ on Light

Hello Students, how are you all hope you all will be good, in this Page we have shared with you more than 20 Important MCQs on Light class 8 with answers which is helpful for various entrance exam preparation. This Light class 8 Mcq pdf will help you enhance your performance in entrance exams like NEET and JEE. MCQs on Light is an important chapter for Class 8, 9, 10, 11, and class 12 Students.

## Multiple Choice Questions On Light For Class 8

1. Braille system is used by____________

(a) Hearing impaired

(b) Black people

(c) Blind people

(d) African people

2. Which of the following is an example of a luminous object?

(a) Star

(b) Smooth surface

(c) Mirror

(d) Cloth

3. A number of rays from different direction assemble at point are called______________

(a) Intersecting rays

(b) Parallel rays

(c) Divergent rays

(d) Convergent rays

4. There are ______ laws of reflection.

(a) two

(b) three

(c) four

(d) five

5. In a periscope, how are the reflecting mirrors arranged?

(a) Perpendicular to each other

(b) At an angle of 45°

(c) At an angle of 90°

(d) At an angle of 60°

6. A smooth shining surface, which rebounds the light back in same or in different direction, is called__________

(a) a mirror

(b) a lens

(c) reflection of light

(d) point of incidence

7. Front bulged part of the eyeball is called______________

(a) cornea

(b) choroid

(c) pupil

(d) retina

8. In case of reflection of light, the angle of incidence (i) and the angle of reflection (r) are related as______________

(a) i = r

(b) i < r

(c) i > r

(d) no definite relation

9. Visually impaired people can read and write using_____________

(a) electronic writer

(b) digital pens

(c) braille system

(d) hearing aids

10. The splitting of white light into its seven constituent colours is called___________

(a) refraction

(b) dispersion

(c) deviation

(d) reflection

11. The defect due to which a person is not able to see the distant objects clearly______________

(a) Myopia

(b) Hypermetropia

(c) Cornea

(d) Cataract

12. If the angle of incidence of light falling on a plane mirror is 30°, what will be the angle of reflection?

(a) 90°

(b) 60°

(c) 30°

(d) 0°

13. Rainbow is a natural phenomenon showing_______________

(a) Reflection

(b) Deflection

(c) Dispersion

(d) Diversion

14. If light falls perpendicularly on a plane mirror, what will be the angle in which it will be reflected?

(a) 45°

(b) 90°

(c) 180°

(d) 360°

15. An owl can see clearly at night but not day time because it has___________

(a) More rods and few cones

(b) Less rod and more cones

(c) More rods and more cone

(d) Less rods and less cones

16. How many images are obtained when plane mirrors are arranged parallel to each other?

(a) A single image

(b) Two images

(c) Infinite number of images

(d) Zero image

17. ______ refers to collection of rays.

(a) Image

(b) Photon

(d) Beam

18. The angle of incidence is always ______ to the angle of reflection.

(a) greater

(b) smaller

(c) equal

(d) none of the above

19. When the angle between two plane mirrors is 60∘, how many images will be formed by the mirrors?

(a) 5

(b) 6

(c) 7

(d) 8

20. Which of the following substance change the direction of light?

(a) Thin plastic sheet

(b) Lens

(c) Water

(d) Mirror

21. Which of the following travels faster?

(a) Jet Airplane

(b) Sound

(c) Light

(d) Supersonic plane

22. Band of seven colours obtained on screen after dispersion is called___________

(a) Scattering

(b) Spectrum

(c) Transparency

(d) Reflection

23. In our houses, which of the following is used for looking at ourselves?

(a) Convex mirror

(b) Concave mirror

(c) Convex lens

(d) Plane mirror