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A nucleus with mass number 220 initially at rest emits an α-particle .

If the Q value of the reaction is 5.5 MeV , Calculate Kinetic Energy of the α - particle

(A) 4.4 MeV

(B) 5.4 MeV

(C) 5.6 MeV

(D) 6.5 MeV

2 Answers

19
Debotosh.. ·

k.e of (product nucleus + outgoing particle ) - k.e. of incoming nucleus = Q =5.5 MeV
k.e. of product nucleus = 0(as it at rest)
..outgoing particle is the α-particle
....now proceed ! ( i feel i am getting a different answer here ) !

1
E=MC^2 ·

Thanks

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