Question

Man can see objects equally clear from various distances due to

• A. Cornea
• B. Conjuctiva
• C. Eyelid
• D. Ciliary muscles

Answer 1

Answer: (D)

Ciliary muscles

A. Cornea is the anterior portion of eye which absorbs oxygen from the air and helps in focussing the light waves entering the eye.

B. Conjunctiva is a thin transparent membrane lining the eyelids.

C. Eyelids are two movable folds of tissues present above and below in front of each eye.

D. Ciliary muscles helps in changing the shape of eye lens and focussing the light rays to visualise the distant or nearby objects.

Hence, man can see objects equally clear from various distances due to ciliary muscles because they change the shape of eye lens and focus the light rays according to the distance of object.

So, the correct answer is 'Ciliary muscles'.