JEE Physics · Hard

Center of Mass, Momentum and Collision: JEE — Super Elastic MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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JEE — Super ElasticHardQuestion 30560

Question

Can a collision have e > 1?
  1. A
    No, e is always ≤ 1
  2. B
    Yes, in explosive collisions where internal energy is released
    Correct
  3. C
    Yes, for all light particles
  4. D
    Only for perfectly elastic collisions

Correct answer

Yes, in explosive collisions where internal energy is released

Explanation

e > 1 is possible when internal energy is released (e.g., explosive charges). In such 'super-elastic' collisions, separation speed > approach speed.