Question

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.

Answer 1

In a vacuum, electromagnetic radiation of short wavelengths travels at the same speed as radiation of long wavelengths, which is the speed of light (approximately 3× 10⁸ m/s).

Step-by-step explanation:

Electromagnetic radiation, which includes forms such as gamma rays and visible light, behaves both as a wave and as a particle. Regardless of the wavelength, in a vacuum, all forms of electromagnetic radiation travel at a constant speed which is commonly referred to as the speed of light, and this speed is approximately 3× 108 m/s. Therefore, the answer to the question is that electromagnetic radiation of short wavelengths travels at the same speed as radiation of long wavelengths.

Answer 2

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 .