A) mass of particle > unity
B) mass of particle = unity
C) mass of particle\[\le \]h
D) mass of particle\[\ge h/4\pi \]
Correct Answer: D
Solution :
According to Heisenberg?s uncertainty principle \[\Delta x.\Delta p\ge \frac{h}{4\pi }\] \[(\because \Delta p=m\Delta v)\] \[\Delta x.m.\Delta v\ge \frac{h}{4\pi }\] Given, \[\Delta x=\frac{1}{\Delta v}\] Thus, \[m\ge \frac{h}{4\pi }\]
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