Question

24 Pts) rent source if light S with wavelength is iocated 0, y 0, and sends a direct signal to a receiver R located 6. The source alse ends a signal that reflects trom a mirror M located at x -, y-t), and then iravels tc rhe receiver. (i5 a D xL, show that the two signals at R will destructively interfere if 2 D m 1. 2.3 2L 9 s. Now suppose that a glass plate with thickness t undindex of refraction nplaced along the direct horizontai path between S and R. Show that the minimum thickness tin for wiach the destructive minimum found in part (a) above is shifted to become ar: adjacent maximum is 20-1)

Answer 1