NCERT Question 4 (MCQ) - Chapter 11 Class 10 - Human Eye and Colourful World

Last updated at April 16, 2024 by

The change in focal length of an eye lens is caused by the action of the

(a) pupil. (b) retina.

(c) ciliary muscles. (d) iris.

 

Answer

(c) ciliary muscles

 

Explanation

The ciliary muscles helps in changing the shape of the lens, thus changing its focal length.

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