If the momentum of a particle is doubled, what happens to its de Broglie wavelength? A) It doubles. B) It halves. C) It slightly more than doubles. D) It becomes slightly less than half. E) It decreases by a factor of 2^−1/2.

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Quizplus · Accepted Answer

The de Broglie wavelength ($\lambda$) is inversely proportional to the momentum (p) of a particle, as given by the equation $\lambda = \frac{h}{p}$, where $h$ is Planck's constant. Therefore, if the momentum is doubled, the de Broglie wavelength is halved.

If the Momentum of a Particle Is Doubled, What Happens