A) \[\frac{h}{\sqrt{2mE}}\]
B) \[\frac{2h}{mE}\]
C) \[2mhE\]
D) \[\frac{2\sqrt{2mE}}{h}\]
Correct Answer: A
Solution :
\[\frac{1}{2}m{{v}^{2}}=E\Rightarrow mv=\sqrt{2mE};\ \ \therefore \ \ \lambda =\frac{h}{mv}=\frac{h}{\sqrt{2mE}}\]
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