Physics, asked by preetimathur2447, 1 year ago

The power of a lens -2.5 D . What is the focal lenghtand nature of lens?

Answers

Answered by tanishk2452

since P=1/f and when it is expressed in cm it is P=100/f so putting the value we can get the answer since focal length is negative for a concave lens so it is concave

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