Question

In vacuum the speed of light depends upon(a) frequency(b) wavelength(c) velocity of light sources(d) None of these

Answer 1

It must be (d) none of these...

Speed of light does not depend on anything.

Answer 2

Answer:

The correct answer is (d) None of these. In a vacuum, the speed of light does not depend upon the frequency, wavelength, and velocity of the light source.

Explanation:

• The material medium in which light is travelling determines its speed.
• The speed of light is greatest when it is moving through a vacuum.
• The medium's refractive index has an impact on the speed of light.
• A medium's refractive index will increase if it is denser, which will result in a slower speed of light for that medium.
• We can therefore conclude that the density of the medium in which light is travelling determines its speed alone.
• There is no moving thing that can match the speed of light. Light travels at a constant speed regardless of its frequency or wavelength.
• Additionally unaffected by the source's velocity is the speed of light, 3 × 10⁸ m/s is the speed of light. This is the highest known velocity of any object or wave to date. Options a, b, and c are therefore incorrect.

Thus, In a vacuum, the speed of light does not depend upon the frequency, wavelength, and velocity of the light source. Hence, the correct option is none of these.

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