CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Justify why the brewster angle for a transparent medium is different for different colors of lights?


Open in App
Solution

Brewster's Law:

  1. When non-polarized light falls on an interface, the reflected light is totally polarized if the angle of incidence is the angle called Brewster's angle.
  2. Brewster's angle is given as,

Ip=tan-1n,

Ip= Brewster's angle, n= refractive index.

Also,λ=λ0n,

Where, λ=wavelength of light, λ0= wavelength of light in vacuum, n= refractive index.

Hence, λ1n.

Justification:

  1. As refractive index n varies inversely to wavelength; So it is different for lights of different wavelengths or colours.
  2. So, this angle is different for lights of different colours.

Hence, the Brewster angle is different for different colours of lights.


flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Apparent Depth
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon