Question

A ray of light suffers refraction in moving from glass to air. If wavelength of light iin glass is 3600 Angstrom then what is the wavelength in air? Refractive index of Glass is 3/2 .​

Answer 1

Answer:

$\lambda_2 = 2400$ Å

Explanation:

According to Snell's Law,

aμg = $\frac{\lambda_a}{\lambda_g}$

$\frac{3}2 = \frac{3600}{\lambda_2}$

∴ $\lambda_2 = 3600 * \frac{2}3$

$\lambda_2 = 2400$ Å