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Question

State whether true or false :
Our eyes have a convex lens whose focal length can be changed at will by the contraction and relaxation of cilliary muscles.

  1. True
  2. False

A
True
B
False
Solution
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Our eyes have a biconvex lens called the eye lens made up of transparent and jelly like material.The focusing of the eye is controlled by the contraction and relaxation of cilliary muscles, which can change the thickness and curvature of the lens. This process of focusing is called accommodation.

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State whether true or false :
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