Physics, asked by thanyasaravanan476, 8 months ago

What is the power of a lens having a focal
lenght of a) 50cm 6)-50cm​

Answers

Answered by msn9258
2

Answer:

Power of a lens is always reciprocal to the focal length. So, aconvex lens with 50cm focal length has a power of (1/0.5) Dioptre(D) or 2D. And for -50cm it's -2D .

Explanation:

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