In a vacuum, electromagnetic radiation of short wavelengths a. travels as fast as radiation of long wavelengths. b. travels slower than radiation of long wavelengths. c. travels faster than radiation of long wavelengths. d. can travel both faster and slower than radiation of long wavelengths.

Question

Frank Sampson

Chemistry

8 September, 10:03

In a vacuum, electromagnetic radiation of short wavelengths a. travels as fast as radiation of long wavelengths. b. travels slower than radiation of long wavelengths. c. travels faster than radiation of long wavelengths. d. can travel both faster and slower than radiation of long wavelengths.

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Grady Archer · Answer 1

In a vacuum, electromagnetic radiation of short wavelengths travels as fast as radiation of long wavelengths. Correct answer: A

There is no difference in the speed of the electromagnetc waves with different wavelengths. The speed does not depend of the wavelenght of the wave. Or in other words, a change in the frequency (or wavelength) of a wave does not affect the speed of the wave.