Question

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The next three questions pertain to a certain green light that has a wavelength of 600nm is vacuum

The next three questions pertain to a certain green light that has a wavelength of 600nm is vacuum. The refractive index of a certain plastic is 1.2.

The frequency of the green light in the plastic will be

Group of answer choices

3.0 x 10¹⁴ Hz.
4.0 x 10¹⁴ Hz.
5.0 x 10¹⁴ Hz.
6.0 x 10¹⁴ Hz.
7.2 x 10¹⁴ Hz.

Expert Solution

Frequency of light in plastic will be 5.0 10¹⁴ Hz.

Explanation

Wavelength of green light in vacuum is = 600 nm = 600 10^{- 9} m = 6 10^{- 7} m

Speed of light in vacuum is c = 3 10⁸ m/s

Frequency of light in vacuum is

f = 5.0 10¹⁴ Hz

As frequency of light does not change when it goes from one medium to another. Therefore frequency of light in plastic will be 5.0 10¹⁴ Hz.

Please feel free to comment if you have doubt

Cheers

genius_generous answered 2 years ago

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