Physics, asked by riu17, 11 months ago

two lenses of focal length -2.5D & +1.5D are placed in contact. find the total power of the combination of lens. calculate the focal length of this combination.

Answers

Answered by Anonymous

3

P(total)=P1+P2

P(total)= -2.5+1.5=-1D

P=1/f =1/(-1)=-1m

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