Light having a vacuum wavelength of 600 nm, traveling in a glass (n g = 1.50) block,
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Light having a vacuum wavelength of 600 nm, traveling in a glass (ng = 1.50) block, is incident at 45° on a glass–air interface. It is then totally internally reflected. Determine the distance into the air at which the amplitude of the evanescent wave has dropped to a value of 1/e of its maximum value at the interface.
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