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Focal length of a thin lens in air is 10...

Focal length of a thin lens in air is 10cm. Now, medium on one side of the lens is replaced by a medium of refractive inidex `mu=2`. The radius of curvature of the surface of lens, in contact with the medium, is 20cm. Find the new focal length.

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To find the new focal length of the thin lens after one side is immersed in a medium with a refractive index of \( \mu = 2 \), we can use the lens maker's formula. The formula is given by: \[ \frac{1}{f} = \left( \mu - 1 \right) \left( \frac{1}{R_1} - \frac{1}{R_2} \right) \] ### Step-by-Step Solution: ...
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