Physics, asked by bhuvanachandrika1437, 5 months ago

give a realation between focal length and power of lens​

Answers

Answered by yaduvanshigaurav2577
0

Answer:

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Answered by ArjunSanju
3

Answer:

a lens has a shorter focal length it is said to be more powerful. The power of a lens is defined as the reciprocal of the focal length. Lens power is measured in dioptres (D).

Converging (convex) lenses have positive focal lengths, so they also have positive power values.

Diverging (concave) lenses have negative focal lengths, so they also have negative power values

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