Question

A monochromatic source produces light at a wavelength of 510 nm in air. The wave then...

A monochromatic source produces light at a wavelength of 510 nm in air. The wave then passes through water that has an index of refraction of 1.32. The frequency of the wave in the water is

7.76 x 10^14 Hz
4.45 x 10^14 Hz
5.88 x 10^14 Hz
4.54 x 10^14 Hz
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Answer #1

as per the refraction formula

where c = speed of light in vaccume and

v = speed of light in mediam

n = refractive index of medium.

Speed of wave in water is

Calculating initial frequency of wave

We also know during Refraction, frequency of light does not change only wacvelength changes.

So Frequency of wave in the water is equal to 5.88 x 10^14 Hz

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