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in Electromagnetic Waves by (26.7k points)

What physical quantity is the same for X rays of wavelength 10-10 red light of wavelength 6800 Å and radio waves of wavelength 500 m?

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1 Answer

+1 vote
by (26.1k points)

The speed in vacuum is the same for all

c = 3 × 108 ms-1.

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