Physics, asked by gowthamsai464, 9 months ago

A planoconvex lens becomes an optical system of 28 cm focal length when its
plane surface is silvered and illuminated from left to right as shown in Fig-A. If
the same lens is instead silvered on the curved surface and illuminated from
other side as in Fig. B, it acts like an optical system of focal length 10 cm The
refractive index of the material of lens is

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Answered by bhavansri

0

sorry, I don't know the answer..........

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