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25 November, 23:20

A photon has a wavelength of 705nm calculate the energy of the photon in joules

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  1. 26 November, 02:08
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    In calculating the energy with a given wavelength, just use the Planck’s Equation. First calculate for the frequency using the wave equation. Just divide the speed of light which is 3x10^8 m/s with the given wavelength (705x10^-9 m). Then multiply the frequency with the Planck constant which is 6.63 x10^-34 J. The answer would be 2.82x10^-19 J.
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