Light travels from water (with index of refraction 1.33) into air (index of refr

Question

Light travels from water (with index of refraction 1.33) into air (index of refraction 1.00).

Which of the following statements about this light is true? (There may be more than one correct choice.)
A. The light has the same frequency in the air as it does in the water.
B. The light travels faster in the air than in the water.
C. The light has the same wavelength in the air as it does in the water.
D. The light has the same speed in the air as in the water.
E. The wavelength of the light in the air is greater than the wavelength in the water.

Explanation / Answer

A) true B) true ( index of refraction in water > index of refraction in air, so water is optically dense) c) False d) false e) true

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