In a Double-Refracting Birefringent) Crystal, the E Ray Is Polarized

Multiple Choice

In a double-refracting birefringent) crystal, the e ray is polarized with respect to the o ray at an angle of

A) 90º.
B) 17º.
C) 73º.
D) 0º.
E) None of these is correct because the e ray is unpolarized.