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  • When the kinetic energy of an electron is increased, the wavelength of the associated wave willOption: 1  Increase<div class='qna-

When the kinetic energy of an electron is increased, the wavelength of the associated wave will

Option: 1

 Increase


Option: 2

decrease


Option: 3

Wavelength does not depend on the kinetic energy


Option: 4

none of the above 


Answers (1)

best_answer

As we know-

\lambda=\frac{h}{p}=\frac{h}{\sqrt{2 m E}} ; \\ \quad \therefore \lambda \propto \frac{1}{\sqrt{E}}(\mathrm{h} \text { and } \mathrm{m}=\mathrm{constant})

Hence 2 is the correct option.

Posted by

Deependra Verma

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