Question

Choose the correct statement from the following.
Brewster's angle for a transparent medium is

• A. different for light of different colours
• B. same for lights of different colours
• C. independent of refractive index of the medium
• D. different for lights of same colour

Hint:

Brewster angle is tan inverse of the refractive index, which depends on the colour of light.

Answer 1

The Correct Option is A

Step 1: Recall the formula.
$i_p = \tan^{-1}\mu$.

Step 2: Effect of colour.
Dispersion: $\mu$ is larger for violet than for red. So the angle is larger for violet.

Step 3: Match.
This supports (A).

Final Answer:
Option (A). \[ \boxed{\text{(A)}} \]