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30 December, 17:09

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

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  1. 30 December, 19:39
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    Answer: 5m

    Explanation:

    Given that:

    Wavelength (λ) = ?

    Frequency of wave (F) = 60MHz

    [If 1 MHz = 1,000,000 Hz

    60MHz = 60 x 1,000,000 = 6 x 10^7Hz]

    Speed of wave (V) = 3 x 10^8 m/s

    The wavelength is the distance covered by the wave in one complete cycle. It is measured in metres, and represented by the symbol λ.

    So, apply the formula V = F λ

    Make λ the subject formula

    λ = V / F

    λ = 3 x 10^8 m/s / 6 x 10^7Hz

    λ = 5m

    Thus, the wavelength of an electromagnetic wave is 5 metres.
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