The speed of light in vacuum depends upon

frequency

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amplitude

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wavelength

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none of these

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Solution

The correct option is D
none of these

The speed of light in vacuum is always constant and is equal to $3 x 10^{8} \frac{m}{s}$ .
It does not depend upon the characteristic feature of light wave i.e., amplitude, frequency, wavelength etc.
Hence, option (D) is correct.

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