MCQ

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

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

#### Options

1.326 x10

^{-28}kg-m/s7.54 x10

^{-28}kg-m/s1.326 x10

^{-27}kg-m/s7.54 x10

^{-27}kg-m/s

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#### Solution

1.326 x10^{-27} kg-m/s

Concept: Einstein’s Equation - Particle Nature of Light

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