Question

1.The change in focal length of an eye lens to focus the image of object at varying distances! is brought about by the action of-
a.pupil
b.iris
c.retina
d.ciliary muscles ​

Answer 1

Answer:

D. cilliary muscles

Explanation:

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Answer 2

The change in focal length of an eye lens to focus the image of object at varying distances! is brought about by the action of CILIARY MUSCLES.

They help in accomodation of eye to focus on different images according to their size and distance from eye.......