Question

concave lenses of focal length is 10cm calculate the power​

Answer 1

Answer:

here is ur answer

Explanation:

The power of a lens is the reciprocal of it's focal length. F = 1/f. It is 1/f if the focal length is in meters, 100/f in centimeters and 1000/f in millimeters. The answer to your question would be F = 100/10 = +10 diopters of power.

Hope it will help you

Answer 2

Answer:

Here is the answer -:

Given - f = -10

P= 1/f

P= 1/ -10/100 ( focal length should be in metres )

P= 100/-10

P= -10 D

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