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24 June, 08:39

Assume the speed of light to be 299 792 458 m/s. If the frequency of an electromagnetic wave is 80,000 GHz (GHz = gigahertz = 109 Hz), what is the wavelength of that radiation? Express your answer in micrometres (μm)

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  1. 24 June, 10:22
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    3.747 μm

    Explanation:

    To answer this question, the fundamental wave equation will be used. Light is an electromagnetic wave so we will use the speed of light for this electromagnetic wave.

    v = fλ

    299 792 458 m/s = 80,000 * 10^9 * λ

    λ = 3.747 * 10^-6 = 3.747 μm
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