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A particle of mass 4m at rest decays int...

A particle of mass 4m at rest decays into two particles of masses m and 3m having non-zero velocities. The ratio of the de Broglie wavelengths of the particles 1 and 2 is

A

`3:1`

B

`1`

C

`1:3`

D

`1:sqrt3`

Text Solution

Verified by Experts

The correct Answer is:
B

Total momentum is zero, hence both particles must have same momentum in opposite directions.
`lambda=h/(mv)=h/p rArr lambda_1/lambda_2=1`
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