1) A sheet of glass (n = 1.50) is coated with a 500 nm thick layer of cubic zirconia (n = 2.18). Assume the wavelengths of visible light lie between 400 nm and 710 nm.
a) How many phase changes do the reflected rays undergo?
b) Which visible wavelengths interfere constructively?
c) Which visible wavelengths interfere destructively?
d) What is the maximum thickness the layer can have so that NO visible wavelengths interfere constructively?