Easy MCQ +4 / -1 PYQ · JEE Mains 2022

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

  1. A Q = K<sub>p</sub>
  2. B (K<sub>p</sub> + Q) < 0
  3. C Q < K<sub>p</sub>
  4. D (K<sub>p</sub> + Q) > 0 Correct answer

Solution

<p>K<sub>p</sub> > 0</p> <p>If Q is released $\Rightarrow$ Q > 0</p> <p>$\Rightarrow$ K<sub>p</sub> + Q > 0</p> <p>Even the particle has to be given kinetic energy greater than magnitude of Q to maintain momentum conservation.</p> <p>$\Rightarrow$ K + Q > 0</p>

About this question

Subject: Physics · Chapter: Atoms and Nuclei · Topic: Mass-Energy Equivalence

This question is part of PrepWiser's free JEE Main question bank. 184 more solved questions on Atoms and Nuclei are available — start with the harder ones if your accuracy is >70%.

Drill 25 more like these. Every day. Free.

PrepWiser turns these solved questions into a daily practice loop. Chapter-wise drills, full mocks, AI doubt chat. No auto-renew.

Start free →