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24 May, 09:46

The energy of a given wave in the electromagnetic spectrum is 2.64 * 10-21 joules, and the value of Planck's constant is 6.6 * 10-34 joule·seconds

4.00 * 1012 hertz

2.34 * 10-12 hertz

1.30 * 1013 hertz

2.52 * 10-6 hertz

8.11 * 10-7 hertz

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  1. 24 May, 10:01
    0
    We are given

    E = 2.64 * 10-21 J

    h = 6.6 * 10-34 J s

    The options given below are frequencies, therefore, the question must be asking about the frequency fo the given wave

    The equation is

    E = h f

    Simply substitute and solve for f which is the frequency

    f = 2.64 * 10-21 J / 6.6 * 10-34 J s

    f = 4.00 * 1012 hertz
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