Question
Physics Question on Wave optics
A linearly polarized light of wavelength 590 nm is incident normally on the surface of a 20 μm thick quartz film. The plane of polarization makes an angle 30° with the optic axis. Refractive indices of ordinary and extraordinary waves differ by 0.0091, resulting in a phase difference of fπ between them after transmission. The value of f (rounded off to two decimal places) and the state of polarization of the transmitted light is
A
0.62 and linear
B
0.62 and elliptical
C
-0.38 and elliptical
D
0.5 and circular
Answer
0.62 and elliptical
Explanation
Solution
The correct option is (B) : 0.62 and elliptical.