How does the speed of electromagnetic wave in vacuum depend upon the source of radiation?

Increases as we move from g-rays to radio waves

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Decreases as we move from g-rays to radio waves

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Is same for all of them

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None of these

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Solution

The correct option is C Is same for all of them
The speed of EM waves in vacuum is a constant ( approx. $3 \times 10^{8}$ m/s).

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Similar questions

Electromagnetic radiation travels through vacuum at a speed of __________ m/s.

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