Question

Unpolarized light of intensity I0 is incident on two polarizing filters. The transmitted light intensity is I0/10. What is the angle between the axes of the two filters? Express your answer using two significant figures.

Answer 1

Answer:

Explanation:

Intensity of unpolarized light = I(0)

After first polarization its intensity becomes I (0)/2

After second polarization its its intensity becomes I(0) /2 Cos²θ where θ is angle between two polaroid

So I₁ =I(0)/2 X Cos²θ .

I₁/I(0) = 1/10 = .5 X Cos²θ

Cos ²θ = 0.2

θ = 63 degree.