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26 August, 21:04

A certain radio wave has a wavelength of 6.0 * 10-2m. What is its frequency in hertz?

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  1. 26 August, 23:10
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    The frequency of the wave is 5 x 10⁹ Hz

    Explanation:

    Given;

    wavelength of the radio wave, λ = 6.0 * 10⁻²m

    radio wave is an example of electromagnetic wave, and electromagnetic waves travel with speed of light, which is equal to 3 x 10⁸ m/s².

    Applying wave equation;

    V = F λ

    where;

    V is the speed of the wave

    F is the frequency of the wave

    λ is the wavelength

    Make F the subject of the formula

    F = V / λ

    F = (3 x 10⁸) / (6.0 * 10⁻²)

    F = 5 x 10⁹ Hz

    Therefore, the frequency of the wave is 5 x 10⁹ Hz
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