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)

YESPYQ · Accepted Answer

Options are free to see. Unlock the correct answer and full explanation with PYQ Pass.

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 JEE 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…

Practice more JEE 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…