JEE — Super ElasticHardQuestion 30560
Question
Can a collision have e > 1?
- ANo, e is always ≤ 1
- BYes, in explosive collisions where internal energy is releasedCorrect
- CYes, for all light particles
- DOnly 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.