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#### Question

The momentum of a photon of de Broglie wavelength 5000Å is _______.

[Planck’s constant = 6.63 x10^{-34} J.s.]

(A) 1.326 x10^{-28} kg-m/s

(B) 7.54 x10^{-28} kg-m/s

(C) 1.326 x10^{-27} kg-m/s

(D) 7.54 x10^{-27} kg-m/s

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