Question

Statement- $1$ : Brewster's angle for violet colour is more than that for red colour.
Statement- $2$ : The refractive index corresponding to violet colour is more than that for red colour.

• A. Statement- $1$ is true, statement- $2$ is true and statement- $2$ is correct explanation for statement- $1.$
• B. Statement-1 is true, statement- $2$ is true and statement- $2$ is NOT the correct explanation for statement- $1$ .
• C. Statement- $1$ is true, statement- $2$ is false.
• D. Statement- $1$ is false, statement- $2$ is true.

Answer 1

Answer: (A)

Brewster's angle depends on the wavelength of light because Brewester's angle depends on the refractive index of medium and refractive index depends on the wavelength of light
. $tan\theta _{B}=\mu \propto \frac{1}{\lambda }$
The refractive index corresponding to violet colour is more than that for red colour.
hence Brewster's angle for violet colour is more than that for red colour.