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# Wavelength of Light in Diamond

SATPHY-KLNKF2

The wavelength of a certain color of light in a vacuum is $572\ nm$.

What is its wavelength in diamond, which has an index of refraction of 2.42?

A

$236\ nm$

B

$1384\ nm$

C

$3350\ nm$

D

$97.7\ nm$

E

$574.42\ nm$