Class 12th Physics 2017 Set3 Delhi Board Paper Solution

Question 26

A narrow beam of unpolarised light of intensity I0 is incident on a polaroid P1 . The light transmitted by it is then incident on a second polaroid P2 with its pass axis making an angle of 60° relative to the pass axis of P1 . Find the intensity of the light transmitted by P2 .

Answer

After passing from P1, the intensity of the light will be   I/ 2.

Now after passing from P2, the new intesity of the light will be  I/ 2 cos2 θ.

Intensity of light after transmission from polaroid:

Popular Questions of Class 12th physics

Recently Viewed Questions of Class 12th physics