Class 10 - Science

Human Eye and Colourful World Online MCQ Test

Olympiad Level MCQs Also Included

Set-1 Set-2 Set-3 Set-4 Set-5 Set-6 Set-7 Set-8 Set-9

1. What is the name of the clear, gel-like substance that fills the space behind the lens of the eye?

(A) Aqueous humor
(B) Vitreous humor
(C) Cornea
(D) Retina

2. Which part of the eye plays a crucial role in bending or refracting light to focus it on the retina?

(A) Pupil
(B) Retina
(C) Lens
(D) Sclera

3. What is the function of the ciliary muscles in the eye?

(A) Controlling the size of the pupil
(B) Changing the shape of the lens
(C) Protecting the eye from dust and debris
(D) Detecting colors

4. Which part of the eye is responsible for the perception of colors and detailed vision?

(A) Lens
(B) Pupil
(C) Cornea
(D) Retina

5. The change in the shape of the lens to focus on nearby objects is known as:

(A) Refraction
(B) Accommodation
(C) Reflection
(D) Dispersion

6. The ability of the eye to focus on objects at different distances is called:

(A) Accommodation
(B) Reflection
(C) Refraction
(D) Dispersion

7. In which part of the eye does the actual image formation occur?

(A) Cornea
(B) Pupil
(C) Retina
(D) Lens

8. What happens to the size of the pupil in bright light conditions?

(A) It becomes larger
(B) It remains the same size
(C) It becomes smaller
(D) It disappears

9. What is the function of the aqueous humor in the eye?

(A) Providing oxygen to the cornea
(B) Supporting the shape of the eye
(C) Refracting light
(D) Digesting food

10. In the human eye, which part is responsible for protecting and covering the inner structures?

(A) Lens
(B) Retina
(C) Cornea
(D) Sclera