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Moving with the same velocity, which of ...

Moving with the same velocity, which of the following has the longest de-Broglie wavelength ?

A

`beta`-particle

B

`alpha`-particle

C

proton

D

neutron

Text Solution

Verified by Experts

The correct Answer is:
A
`lambda = (h)/(mv) , lambda prop (1)/(m)`
As `beta`-particle (an electron) has the smallest mass, so it has the longest de-Broglie wavelength.
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