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31 July, 10:37

How do you calculate the number of photons having a wavelength of 10.0 micrometers required to produce 1.0 kilojoules of energy

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  1. 31 July, 11:54
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    To calculate this,

    We know that energy is 1 photon

    E = hc/wavelenth

    wavelength of 10.0 m

    Solution:

    h = 6.626 x 10^-34 Jsec

    C = 2.9979 x 10^8 m/sec

    E = 6.626 10^-34 * 2.9979 10^8 / 10 = 1.9864 10^-26J

    Then, the number of photons is computed by:

    n = 1000 / 1.9864 10^-26 = 5.04 10^28 photons
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