Answer to Question #90077 in Optics for Shivam Nishad

Question

e.m.waves are incident normally on an
interface separating two media of refractive
indices n1 and n2. Obtain expressions for
reflection and transmission coefficients.

Answer 1

Coefficient of reflection when light incident normally on an interface

$$\rho=(\frac{n_1-n_2}{n_1+n_2})^2$$

Coefficient of transmission

$$T=1-\rho$$