Green light can have a wavelength of 512 nm. The energy of a photon of this light is

Question

Green light can have a wavelength of 512 nm. The energy of a photon of this light is

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Neala 3 years 2021-07-25T13:49:12+00:00 1 Answers 63 views 0

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    2021-07-25T13:50:21+00:00

    Answer:

    E = 3.88 * 10^{-17} J

    Explanation:

    Energy is directly proportional to frequency and it is given as:

    E = hf

    where h = Planck’s constant

    f = frequency

    To get frequency, we use the formula of speed:

    c = λf

    where c = speed of light

    λ = wavelength

    => f = c/λ

    Therefore, the energy of the photon will be:

    E = hc/λ

    E = \frac{6.626 * 10^{-34} * 3 * 10^{8}  }{512 * 10^{-9} }

    E = 3.88 * 10^{-17} J

    The energy of the photon is 3.88 * 10^{-17} J

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