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What is the wavelength of an electromagnetic wave that travels at 3 x 108 m/s and has a frequency of 60 MHz? (1 MHz = 1,000,000 Hz)

A frequency of 60 MHz is close to the lower end of the old VHF-TV band.

c = f λ ... where c is the speed of light, f is the frequency and λ is the wavelength

λ = c / f = 3.00x10^8 m/s / 6.0x10^7 1/s

λ = 5.0 m

Wavelenght is the distance between two crests of a wave. The formula for that is

λ = v/f

where λ is the wavelenght, v is the speed and f is the frequency. To slove this, we first convert the frequency to basic units:

60 MHz = 60,000,000 Hz

Then we put the frequency and the speed at the formula:

λ = 3*108/60000000

λ = 0.0000054 m