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A certain mass of hydrogen is changes to...

A certain mass of hydrogen is changes to helium by the process of fusion. The mass defect in fusion reaction is `0.02866 u`. The energy liberated per `u` is (given `1 u = 931 MeV)`

A

26.7 Me V

B

6.675 Me V

C

13.35 MeV

D

2.67 Me V

Text Solution

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The correct Answer is:
B

`Delta m=0.02566u`
energy `=0.02866xx931=26.7` MeV
As `._(1)H^(2)+._(1)H^(2) rarr ._(2)He^(4)`
Energy liberate `(MeV)=13.35` MeV
`=6.675` MeV
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