Published by:
CGP EDU Academic Team
Published on: August 13, 2026
A particle of mass 
moving on a smooth surface with some velocity strikes another particle of mass 
at rest. The head-on elastic collision takes place. After the collision, particles move with equal speed in opposite direction. Determine the mass ratio, 
.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
By the momentum conservation,
…………… .. (i)
By conservation of energy, 
……………… (ii)
From equation (i) and (ii),
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