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Find the frequency f in terahertz of visible light with a wavelength of 567 nm in vacuum. r=:]mz What is the wavelength A in centimeters of electromagnetic microwave radiation whose frequency is 3.49 GHz? A light ray propagates in Material 1 with index of refraction I n1 = 1.17, strikes an interface, then passes into Material 2 with index of refraction n2 = 1.43. The angle of incidence at : the interface is 61 = 17.5\". I I I Determine the angle of refraction 02. Material 1