Physics, asked by Mohitonly2686, 11 months ago

The power of a lens is - 5d define its principal focus and calculate its focal length

Answers

Answered by Hritik1011

0

Answer:

Focal length= 20cm

Concave lens

Explanation:

P = 100/f(in cm) =100 /5= 20cm

For convex lens focal length is positive while for Concave lens focal length is negative

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