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A photon has a wavelength 6400 Å. Calcul...

A photon has a wavelength 6400 Å. Calculate, i. its frequency, ii. Its energy, iiii. Its momentum.

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`i. 4.7xx10^(14)Hz, ii. 31.06xx10^(-20)J, iii. 1.036xx10^(-27)kg ms^(-1)`
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