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# Refraction: Sodium Vapor Lamp

APPH12-NY9EWP

The one line of light emitted by a sodium vapor lamp has a wavelength of 589 nanometers. This light is sent into water with an index of refraction of 1.33.

Which of the following statements best represents the wavelength of the yellow light in the water?

A

$2.26\times { 10 }^{ 8 }\text{ m}$

B

$783 \text{ nm}$

C

${ 5.09\times }{ 10 }^{ 14 }\text{ m}$

D

${ 4.43\times }{ 10 }^{ -7 }\text{ m}$