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LoginWhat is the power of the convex lens having focal length 40 cm ?
Interview Questions Math 1 year ago
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Best Answer
1 year ago
A convex LENS of focal LENGTH 40 CM is in contact with a concave lens of focal length 25 cm. The power of the combination is. Solution : P=1f=1f1+1f2=10.4+1-0.25=-1.5diopter.
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