# What is the Momentum of a Photon of De Broglie Wavelength 5000 A - Physics

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/s

• 7.54 x10-28 kg-m/s

• 1.326 x10-27 kg-m/s

• 7.54 x10-27 kg-m/s

#### Solution

1.326 x10-27 kg-m/s

Concept: Einstein’s Equation - Particle Nature of Light
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