Physics, asked by Latikakahaar228, 1 month ago

Find the focal length of a lens whose power is -4 D

Answers

Answered by sritharina4617

Answer:

Focal length f= 1/p So according to the question power is +2.0 D f= 1/2.0 = 0.5 m In centimeter ...the focal length is 50cm. it means that it is biconvex lens having focal length 50 cm.

Explanation:

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