Vishal Gupta: Numerade Educator Profile

University Physics

Light of original intensity $I_0$ passes through two ideal polarizing filters having their polarizing axes oriented as shown in $\textbf{Fig. E33.28}$. You want to adjust the angle $\phi$ so that the intensity at point P is equal to $I_0$/10. (a) If the original light is unpolarized, what should $\phi$ be? (b) If the original light is linearly polarized in the same direction as the polarizing axis of the first polarizer the light reaches, what should $\phi$ be?

Chapter 33: The Nature and Propagation of Light

Section 5: Polarization