The radio station advertises that it operates at 130 MHz. But on the tuning scale of the old radio receiver, only the lengths of the received radio waves are indicated. What wavelength should the radio be tuned to in order to receive the program of this radio station?
The wavelength of radio stations versus frequency is calculated by the formula
L = Vc / f,
L – wavelength,
Vc – speed of light = 300,000 km / s = 300,000,000 m / s,
f – radio station frequency = 130 MHz = 130,000,000 Hz.
Substituting into the formula, we get
L = 300,000,000 / 130,000,000 = 2.3 meters.
Answer: You need to look for a radio station in the area of 2.3 meters on the scale of radio wavelengths.
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