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Question: Answered & Verified by Expert
If the kinetic energy of a free electron doubles. Its deBroglie wavelength changes by the factor
PhysicsDual Nature of MatterJEE MainJEE Main 2005
Options:
  • A
    $\frac{1}{2}$
  • B
    2
  • C
    $\frac{1}{\sqrt{2}}$
  • D
    $\sqrt{2}$
Solution:
1549 Upvotes Verified Answer
The correct answer is:
$\frac{1}{\sqrt{2}}$
$\lambda=\frac{\mathrm{h}}{\sqrt{2 \mathrm{Km}}}$

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