JEE Main 2024 Physics question
When a Polaroid sheet is rotated between two crossed polaroids then the transmitted light intensity will be maximum for a rotation of :
Answer: (B)
Solution
I = I₀cos²θ · sin²θ = (I₀/4)sin²(2θ), which is maximum when sin 2θ = 1, i.e. θ = 45°.