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Physics Question on Refraction of Light

Formula used when a light ray enters a medium of refractive index n 2 from a medium of refractive index n 1 at curved surface with radius of curvature R is

A

n2v−n1u=n2−n1R\frac{n_2}{v} - \frac{n_1}{u} = \frac{n_2 - n_1}{R}

B

v−u=n2−n1Rv-u = \frac{n_2 - n_1}{R}

C

vn2−un1=n2−n1R\frac{v}{n_2} - \frac{u}{n_1} = \frac{n_2 - n_1}{R}

D

n2v+n1u=n2−n1R\frac{n_2}{v}+\frac{n_1}{u} = \frac{n_2 - n_1}{R}

Answer

n2v−n1u=n2−n1R\frac{n_2}{v} - \frac{n_1}{u} = \frac{n_2 - n_1}{R}

Explanation

Solution

The correct option is (A): n2v−n1u=n2−n1R\frac{n_2}{v} - \frac{n_1}{u} = \frac{n_2 - n_1}{R}