Explaib how focal lenght of lens depends on surrounding medium
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Answer:
The focal length of a lens is depended on the surrounding medium becaz the angle of refraction of a lens is depended on the indices of refraction of the medium of lens and the incoming medium and the difference in their indices.
Explanation:
The focal length of a lens depends on the
(i) radii of curvature of its surfaces and
(ii) on the index of refraction of the material the lens is made from.
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