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7 May, 10:01

A photon has a wavelength of 3.8 x 10^-7 meters, what is the energy of this photon?

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  1. 7 May, 10:46
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    Energy E = hc / l

    where h = Planck's constant, c = speed of light and l = wavelength.

    E = 1.986 * 10^-25 / 3.8 * 10^-7 = 5.223*10^-19
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