Home Physics Electron, Photon, Photoelectric Effect and X-rays Matter Waves de-Broglie wavelength of a body of mass and…
Physics Electron, Photon, Photoelectric Effect and X-rays Matter Waves MCQ (Single Correct)

de-Broglie wavelength of a body of mass and kinetic energy is given by

A
B

C
D

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The correct answer is:
D

The De-Broglie wavelength of a particle is given by the formula:

where is Planck's constant and is the momentum of the particle. The momentum can also be expressed in terms of kinetic energy and mass as follows:

Substituting this into the De-Broglie wavelength formula gives:

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