Atoms And Nuclei Question 384

Question: In an α -decay the kinetic energy of α -particle is 48 MeV and Q-value of the reaction is 50 MeV. The mass number of the mother nucleus is (Assume that daughter nucleus is in ground state)

Options:

A) 96

B) 100

C) 104

D) 110

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Answer:

Correct Answer: B

Solution:

  • We have Kα=mymy+mα.Q
    ,Kα=A4A.Q48=A44.50A=100


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