Question

A ray of light traveling in air (????=1.0) is incident on a film of oil, making an angle of incidence of 47°, as shown. When the ray refracts into the oil, it makes an angle of 31°, as shown. After traveling through the oil, the ray is then incident on water (??????=1.33).

470 Air 31. ::0il — Water і өA

A) Determine the index of refraction of the oil, ????.

B) Determine the angle ?? that the ray makes as it travels through the water.

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