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Question

Physics Question on Electromagnetic waves

The de-Broglie wavelength λ\lambda :

A

is proportional to mass

B

is proportional to impulse

C

inversely proportional to impulse

D

does not depend on impulse

Answer

inversely proportional to impulse

Explanation

Solution

de-Broglie wavelength is λ=h∣p∣\lambda=\frac{h}{|p|} or λ=h∣I∣\lambda=\frac{h}{|I|} [∵∣I∣=∣p∣][\because|I|=|p|] orλ∝1∣I∣\lambda \propto \frac{1}{|I|}