Light of wavelength 600 nm in vacuum is incident nearly perpendicularly on a thin film whose index
Question:
Light of wavelength 600 nm in vacuum is incident nearly perpendicularly on a thin film whose index of refraction is 1.5. The light travels from the top surface of the film to the bottom surface, reflects from the bottom surface, and returns to the top surface, as the drawing indicates. How far has the light traveled inside the fi lm? Express your answer in terms of the wavelength λfilm of the light within the film.
(a) 2λfilm
(b) 3λfilm
(c) 4λfilm
(d) 6λfilm
(e) 12λfilm
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d The downandback distance traveled by the light wa...View the full answer
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