Question

factors on which focal length of a lense depend

Answer 1

Answer:

The focal length of a lens depends on the

Radii of curvature of its surfaces and 2)on the index of retraction of the material the lens is made from

Explanation:

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Answer 2

Answer:

The focal length of a lens depends on the (i) radii of curvatureof its surfaces and (ii) on the index of refraction of the material the lens is made from.