Question

The diagram below shows a portion of the electromagnetic spectrum.

image dcf936aaba8844beb1c3e90816d403e6

Which of the following statements correctly explains the relationship between FM and AM radio waves?


A.
FM radio waves carry less energy than AM radio waves. This is supported by the fact that FM radio waves have a shorter wavelength compared to AM radio waves.


B.
FM radio waves carry less energy than AM radio waves. This is supported by the fact that FM radio waves have a longer wavelength compared to AM radio waves.


C.
FM radio waves carry more energy than AM radio waves. This is supported by the fact that FM radio waves have a shorter wavelength compared to AM radio waves.


D.
FM radio waves carry more energy than AM radio waves. This is supported by the fact that FM radio waves have a longer wavelength compared to AM radio waves.

Answer 1

The correct answer is A. FM radio waves carry less energy than AM radio waves. This is because FM radio waves have a higher frequency and a shorter wavelength compared to AM radio waves. The energy of a wave is directly proportional to its frequency or inversely proportional to its wavelength. Therefore, since FM radio waves have a higher frequency and a shorter wavelength, they carry less energy than AM radio waves.