Physics, asked by ameyaalsundekar4416, 11 months ago

Find the focal length of two lens in contact in 20cm if power of one lens is -3D find the focal length of other lens.

Answers

Answered by hrithikgupta18

0

Power of the combination is 8DP=1/f f=1/Pf= 1/8 =.125m ... lens has focal length of 20 cm find focal length of other lens

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