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A nucleus of .84^210 Po originally at re...

A nucleus of `._84^210 Po` originally at rest emits `alpha` particle with speed `v`. What will be the recoil speed of the daughter nucleus ?

A

`4v//206`

B

`4v//214`

C

`v//206`

D

`v//214`

Text Solution

Verified by Experts

The correct Answer is:
A
(a) `._84 Po^210 rarr ._82 X^206 + ._2 He^4`
Using conservation of linear moments
`206 v'+ 4 v = 0 rArr v' = -(4 v)/((206)) rArr |v'| = (4v)/(206)`.
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A2Z-NUCLEAR PHYSICS-Section D - Chapter End Test
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