The above is a plot of binding energy per nucleon E_b, against the nuclear mass M ; A, B, C, D, E, F correspond to different nuclei. Consider four reactions : (i) A+B \to C+\epsilon (ii) C \to A+B+\epsilon (iii) D+E \to F+\epsilon (iv) F \to D+E+\epsilon where \epsilon is the energy released? In which reactions is \epsilon positive? [AIEEE 2009]

Correct Answer is : (i) and (iv)

AIEEE 2009 Solved Paper

Section: Physics

Question : 56 of 89

Marks: +1, -0

The above is a plot of binding energy per nucleon Eb, against the nuclear mass M;A,B,C,D,E,F correspond to different nuclei. Consider four reactions :
(i) ‌‌A+B→C+ε
(ii) ‌‌C→A+B+ε
(iii) ‌‌D+E→F+ε‌‌
(iv) ‌‌F→D+E+ε
where ε is the energy released? In which reactions is ε positive?

[AIEEE 2009]

(i) and (iii)
(ii) and (iv)
(ii) and (iii)
(i) and (iv)

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