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10 December, 08:16

The energy of a photon that has a wavelength of 12.3 nm is

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  1. 10 December, 08:48
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    Energy of a photon is calculated using the formula

    Ep = (Planck’s constant x speed of light / wavelength)

    Ep = (6.634 x 10^-34 J. s x 3 x 108 ms-1) / 12.3 x 10^-9 m

    Ep = (6.634 x 10^-34 J. s m s-1 / 12.3 x 10^-9 m

    Ep = (19.902 x 10^-26 J. s m s-1) / 12.3 x 10^-9 m

    Ep = (19.902 x 10^-26 J. s m s-1) / 12.3 x 10^-9 m

    Ep = 1.618 x 10^ - 15 J
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