A plano-convex lens has a radius of curvature of 2 cm and a refractive index of 1.5. Its focal length is \({f}_{1}\) in air and \({f}_{2}\) in a medium with a refractive index of 1.2. Calculate the ratio \(\frac{{f}_{1}}{{f}_{2}}\).

(Shift - I Memory Based)

Question

A plano-convex lens has a radius of curvature of 2 cm and a refractive index of 1.5. Its focal length is \({f}_{1}\) in air and \({f}_{2}\) in a medium with a refractive index of 1.2. Calculate the ratio \(\frac{{f}_{1}}{{f}_{2}}\).

(Shift - I Memory Based)

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A plano-convex lens has a radius of curvature of 2 cm and a refractive index of 1.5. Its focal length is \({f}_{1}\) in…

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A plano-convex lens has a radius of curvature of 2 cm and a refractive index of 1.5. Its focal length is \({f}_{1}\)​ in…

Practice more Board Physics PYQs

A plano-convex lens has a radius of curvature of 2 cm and a refractive index of 1.5. Its focal length is \({f}_{1}\) in…