Refraction Of Light Video Lessons

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Problem: If the index of refraction of a material is 2, this means that light travelsA) 2 times as fast in the material as it does in air.B) 2 times as fast in vacuum as it does in the material.C) 2 times as fast in the material than it does in vacuum.D) 2 times as fast in air as it does in vacuum.E) 1/2 as fast in air as it does in the material.

FREE Expert Solution

vmaterial = c/ηmaterial

If η = 2, then:

v = c/2

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Problem Details

If the index of refraction of a material is 2, this means that light travels


A) 2 times as fast in the material as it does in air.

B) 2 times as fast in vacuum as it does in the material.

C) 2 times as fast in the material than it does in vacuum.

D) 2 times as fast in air as it does in vacuum.

E) 1/2 as fast in air as it does in the material.

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