Question

If "38 %" of the light passes through this combination of filters, what is the angle between the transmission axes of the filters

Answer 1

Answer:

52°

Explanation:

The initial intensity $I_{0}$ = $I$

The final intensity $I_{f}$ = 38% of $I$ = 0.38

From the polarizing equation

$I_{f} = I_{0} cos^{2}$θ

substituting values, we have

$0.38I = I cos^{2}$θ

0.38 = $cos^2$θ

cosθ = $\sqrt{0.38}$

cosθ = 0.6164

θ = $cos^{-1}$ 0.6164

θ = 51.9 ≅ 52°