Chapter 37, Problem 51CP

(a)

To determine

To show: The phase difference between the ray O and E after travelling the thickness of the plate is $\theta =\frac{2\pi d}{\lambda }\left|n_0-n_E\right|$.

(b)

To determine

The minimum value of thickness of the quartz plate for which phase difference is $\frac{\pi }{2}$.