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A nucleus with mass number 220 initially...

A nucleus with mass number `220` initially at rest emits an `alpha` - particle. If the `Q` value of the reaction is `5.5MeV`, calculate the kinetic energy of the `alpha` - particle

A

4.4 MeV

B

5.4 MeV

C

5.6 MeV

D

6.5 MeV

Text Solution

Verified by Experts

The correct Answer is:
B
`Q - ` value = `5.5 ` MeV
Kinetic energy of `alpha - ` particle = `((A-4)/A) xx Q` - value
`rArr ((220 - 4)/220) xx 5.5 MeV = 5.4 `Mev
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