Question

When the eye is focused on a distant object, the ciliary muscles are ______ so that the focal length of eye lens has its maximum value.

1) Relaxed

2) Strained

3) Both 1 & 2

4) none of these

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Answer 1

Answer:

I. thinking (4) none of these

Answer 2

Answer:relaxed is the answer

Explanation:Eye lens of human eye is a convex lens. Being flexible, the eye lens can change its shape i.e. can become thin or thick to focus light on to the retina. The eye lens are held in position by the suspensory ligaments. One end of the suspensory ligaments is attached to the eye lens and the other end to the ciliary muscles . Ciliary muscles change the thickness of eye lens while focussing. hope it helps you