What is the power of a lens of focal length -25 cm? Is the lens converging or diverging in nature
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Power of lens is the ability to converge or diverge light rays passing through it. It is the reciprocal of the focal length in metres.
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power of lens is= p=1/f,focal length
should be in meter
f= -25cm=-.25m
so p=1/-0.25=-4d
since the focal length is negative,it is concave or diverging lens.
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