(c) The optical coating is designed for the dielectric cryolite (n = 1.54) with a thickness of 108 nm. Calculate the wavelength for which this anti-reflection coating will produce a minimum reflectance. Determine if there are other visible wavelengths at which this coating will also be effective for reducing reflections.

(c) The optical coating is designed for the dielectric cryolite (n = 1.54) with a thickness of 108 nm. Calculate the wavelength for which this anti-reflection coating will produce a minimum reflectance. Determine if there are other visible wavelengths at which this coating will also be effective for reducing reflections.