NEET2024PhysicsWave OpticsActual
A beam of unpolarized light of intensity I₀ is passed through a polaroid A , then through another polaroid B , oriented at 60^ and finally through another polaroid C , oriented at 45^ relative to B as shown. The intensity of emergent light is:
Options
- AI₀ 16
- BI₀ 4
- CI₀ 2
- DI₀ 32
Correct answer
A. I₀ 16
Step-by-step solution
I₁= I₀ 2 I_B= (I₁ ) ^2 60^ = I₀ 2 ( 1 2 )^2= I₀ 8 I_C=I_B ^2 45^ = I₀ 8 ( 1 2 )^2= I₀ 16