A plano convex lens \( (\mu=1.5) \) has a maximum thickness of \( 1...

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A plano convex lens \( (\mu=1.5) \) has a maximum thickness of \( 1 \mathrm{~mm} \). If diameter of its aperture is \( 4 \mathrm{~cm} \). Find
(i) Radius of curvature of curved surface;
(ii) its focal length in air.
\( \mathrm{P} \)
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