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JEE Main 2022 (28 Jun, Shift 1) · Nuclear Reactions & Q-value

Nuclear Reactions & Q-value question from JEE Main 2022 (28 Jun, Shift 1)

Q12JEE Main 2022 · 28 JUN · SHIFT 1Medium

Nuclear Reactions & Q-value

The Q-value of a nuclear reaction and kinetic energy of the projectile particle, Kp are related as:

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Answer: (d)

Total kinetic energy of the products $= K_p + Q$ (energy conservation, target at rest).
Product kinetic energy cannot be negative (it must be positive for products to move apart), so the reaction can occur only if $K_p + Q > 0$ .
So the answer is (d) $(K_p + Q) > 0$ .

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