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Question

In vacuum the speed of light depends upon


A

frequency

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B

wavelength

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C

velocity of light source

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D

none of these

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Solution

The correct option is D

none of these


The explanation for Correct Option:

Option (D):

  1. The speed of light in a vacuum is 3×108m/s
  2. The speed of light is independent of the frequency, wavelength, and velocity of the light source.
  3. It only depends on the refractive index of the medium.
  4. The refractive index is the ratio of the speed of light and the speed of light in a given medium.
  5. Hence, the more the refractive index, the less the velocity of light in that medium.

Hence option D is correct.


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