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The red light from the hydrogen emission spectrum is the hydrogen -alpha line with a wavelength of $656.3\text{ nanometers}$.

This wavelength is sent through water with an index of refraction of $1.33$.

Which of the following best represents the frequency of the red light in the water?

A

$3.44\times { 10 }^{ 14 }\text{ Hertz}$

B

$4.57\times { 10 }^{ 14 }\text{ Hertz}$

C

$6.08\times { 10 }^{ 14 }\text{ Hertz}$

D

$8.08\times { 10 }^{ 14 }\text{ Hertz}$

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