Question

Calculate the index of refraction for a medium in which the speed of light is 1.435×108 m/s

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The homework is set to a tolerance of 5% while the practice problems require higher. Thus, if you do practice, you will need to enter to the hundredth's place, while the tenths should be sufficient here. Also, enter "3.0" instead of "3" as Edfinity considers the latter to be an integer and thus does not process the result correctly.

Answer 1

index of refraction = speed of light in vacuum / speed of light in medium

n = c/v

= 3*10^8 / 1.435*10^8

= 2.1

so the index of refraction is 2.1