Question

A woman is listening to her radio, which is 172 m from the radio station transmitter.

(a)

How many wavelengths of the radio waves are there between the transmitter and radio receiver if the woman is listening to an AM radio station broadcasting at 1140 kHz?

wavelengths

(b)

How many wavelengths are there between the transmitter and radio if she changes to an FM station broadcasting at 95.3 MHz?

wavelengths

Answer 1

Distance between the radio station transmitter and the radio is = s = 172 m

Transmitted waves from the radio station are electromagnetic waves. So, they travel at a speed of light.

So not a complete wavelength is there in between the transmitter and the radio.

So there are 54 complete wavelengths are there in between the transmitter and the radio.