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A doctor has prescribed of corrective lens of power +1.5D. Find the focal length of the lens. Is the prescribed lens diverging or converging |
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Answer» SOLUTION :POWER of LENS, P=1/f P=1.5D f=1/1.5=1/15=0.66m A convex lens has a positive focal LENGTH. HENCE it is a convex lens or a converging lens. |
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