Human Eye and Colourful World MCQ Test 1

Quiz Test

Name: Class:

1. The phenomenon of light responsible for the working of the human eye is:

A) Refraction

B) Reflection

C) Power of accommodation

D) Persistence of vision

2. The lens system of human eye forms an image on a light sensitive screen, which is called as: [CBSE 2024]

A) Cornea

B) Ciliary muscles

C) Optic nerves

D) Retina

3. The part of human eye which controls the amount of light entering into it:[CBSE 2025]

A) Iris

B) Cornea

C) Ciliary muscles

D) Pupil

4. The curvature of eye lens of human eye:[CBSE 2025]

A) Is fixed

B) Can be increased

C) Can be decreased

D) Increases or decreases as the case may be

5. Which part of the eye changes the focal length of the eye lens to focus objects at different distances?

A) Iris

B) Retina

C) Ciliary muscles

D) Cornea

6. The human eye forms a real and inverted image on which part?

A) Retina

B) Cornea

C) Iris

D) Pupil

7. Which transparent part of the eye provides the maximum refraction of light entering the eye?

A) Eye lens

B) Cornea

C) Retina

D) Vitreous humour

8. The adjustment of the eye lens to see objects at different distances is called:

A) Refraction

B) Persistence of vision

C) Reflection

D) Power of accommodation

9. The distance between the eye lens and retina in a normal human eye is approximately:

A) 1 cm

B) 5 cm

C) 2.5 cm

D) 10 cm

10. Which phenomenon explains the ability of the human eye to focus on both near and distant objects?

A) Power of accommodation

B) Persistence of vision

C) Reflection of light

D) Dispersion of light