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in Physics by (51.8k points)

Find the power of a concave lens of focal length 2 m.

1 Answer

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by (266k points)
edited by
 
Best answer

Given  f = -2m
Power, P=1/f = 1/-2 = -0.5 dioptre.
That
is power of concave lens is - 0.5 dioptre.

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