Light of wavelength 550 nm in air is found to travel at 1.96 × 108 m/s in a certain liquid. Determine
(a) the frequency of the light in the liquid.
(b) the wavelength of the light in the liquid.
(a) 5.45 × 1014 Hz
(b) 359. nm
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Light is incident normally from air onto a liquid film that is on a glass plate. The liquid film is 164 nm thick, and the liquid has index of refraction 1.60. The glass has index of refraction n = 1.50
Calculate the longest visible wavelength (as measured in air) of the light for which there will be totally destructive interference between the rays reflected from the top and bottom surfaces of the film. (Assume that the visible spectrum lies between 400 and 700 nm.)