MCQ
The wave - length of a moving electron-
- AIncreases with the increase of the velocity of the electron
- BDoes not depend upon the velocity of the electron
- ✓Decreases with the increase of velocity of the electron
- DIs equal to zero
✓
Answer
Correct option: C.
Decreases with the increase of velocity of the electron
c
Wavelength of electron varies as: $\lambda=\frac{ h }{ mv }$
Wavelength of electron varies as: $\lambda=\frac{ h }{ mv }$
Wavelength of an electron is inversely proportional to its velocity. Hence, as velocity increases wavelength decreases.
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