MCQ'S ON CHAPTER HUMAN EYE AND COLOURFUL WORLD

HUMAN EYE AND COLOURFUL WORLD

1.The defect of vision in which a person cannot see the distant objects clearly but can see nearby objects clearly is called

(a) myopia

(b) hypermetropia

(c) presbyopia

(d) bifocal eye

2.The splitting of white light into different colours on passing through a prism is called

(a) reflection

(b) refraction

(c) dispersion

(d) deviation

3.Twinkling of stars is due to

(a) reflection of light by clouds

(b) scattering of light by dust particles

(c) dispersion of light by water drops

(d) atmospheric refraction of starlight

4.The amount of light entering the eye can be controlled by the

(a) iris

(b) pupil

(c) cornea

(d) ciliary muscles

5.What type of image is formed by the eye lens on the retina?

(a) Real and erect

(b) Virtual and inverted

(c) Real and inverted

(d) Virtual and erect

6.Which of the following phenomena of light are involved in the formation of a rainbow?

(a) Reflection, refraction and dispersion

(b) Refraction, dispersion and total internal reflection

(c) Refraction, dispersion and internal reflection

(d) Dispersion, scattering and total internal reflection

7.Type of lens used in correction of myopia

(a) convex lens

(b) concave lens

(c) reflecting lens

(d) bifocal lens

8.Myopia may arise due to

(a) excessive curvature of the eye lens

(b) elongation of the eyeball

(c) both (a) and (b)

(d) none of these

9.The black opening between the aqueous humour and the lens is

(a)retina

(b)iris

(c)cornea

(d)pupil

10.Bi-focal lens are required to correct

(a) astigmatism

(b)myopia

(c) hypermetropia

(d)presbyopia

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My Student 

Amrutha Class 10

VIDYODAYA ENGLISH MEDIUM HIGH SCHOOL