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To reduce de-Broglie wavelength of an el...

To reduce de-Broglie wavelength of an electron from `10^(-10)` m to`0.5xx10^(-10)` m,its energy should be …

A

increased to 4 times

B

halved

C

doubled

D

decreased to fourth part

Text Solution

Verified by Experts

The correct Answer is:
D
`lambda =h/p = h/(sqrt(2mK))`
`lambda to 2lambda implies K to K/4`
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