Refraction Of Light Video Lessons

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Problem: In which of the following materials is the velocity of light greatest?A. AirB. WaterC. Fused quartzD. Crown glass

FREE Expert Solution

The speed of light in a material depends on the refractive index of the material — a relationship given by:

η=cvv=cη, where v is the speed of light in a medium, is the speed of light in a vacuum (which is constant), and η is the refractive index. 

In our equation, we see that the speed of light in a material is inversely proportional to the refractive index of that material.

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Problem Details

In which of the following materials is the velocity of light greatest?

A. Air

B. Water

C. Fused quartz

D. Crown glass

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