The focal length of a convex lens in air is

PHYSICS · Subjective · CBSE · Physics · Ray Optics and Optical Instruments · Ray Optics and Optical Instruments

Problem

The focal length of a convex lens in air is

10\,\text{cm}

. Find its focal length in water, given that

\mu_g=\frac{3}{2}

and

\mu_w=\frac{4}{3}

.

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