Question

To have maximum focal length for an eye lens at what distance should an object be placed in front of an eye​

Answer 1

Answer:

It is the ciliary muscles that can modify the curvature of the lens to change its focal length. To see a distant object clearly, the focal length of the lens should be larger. For this, the ciliary muscles relax to decrease the curvature and thereby increase the focal length of the lens. Hence, the lens becomes thin.

Answer 2

Answer:

It is the ciliary muscles that can modify the curvature of the lens to change its focal length. To see a distant object clearly, the focal length of the lens should be larger. For this, the ciliary muscles relax to decrease the curvature and thereby increase the focal length of the lens. Hence, the lens becomes thin.