1.

“The focal length of the lens in the eye can be adjusted to view distant and nearby objects.” Evaluate this statement and arjswerthe questions given below.a) When does historical length of the lens decrease?b) What is the change in the focal length of the lens while viewing distant objects? How does it become possible?

Answer»

a) While viewing nearby objects. 

b) Focal length increases, while viewing distant object the ciliary muscles relax ligaments stretch and the curvature of lens decreases. So the focal length decreases.



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