Question

the focal length of a concave lens is _ .​

Answer 1

Explanation:

The distance from the lens to the focal point is called the focal length. For converging lenses, the focal length is always positive, while diverging lenses always have negative focal lengths.

Answer 2

★-Answer-★

:-- Negative.

★-A deep go through-★

The distance from the lens to the focal point is called the focal length. For converging lenses, the focal length is always positive, while diverging lenses always have negative focal lengths.

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