Atomic Structure Question 493

Question: An electron, a proton and an alpha particle have kinetic energies of 16E, 4E and E respectively. What is the qualitative order of their de-Broglie wavelengths-

Options:

A) λe>λp=λα

B) λp=λα=λe

C) λp>λe>λα

D) λα<λe>λp

Show Answer

Answer:

Correct Answer: A

Solution:

  • de-Broglie wavelength =h2m,(K6)


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