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A neutron collides head-on and elasticit...

A neutron collides head-on and elasticity with an atom of mass number `A`, which is initially at rest. The fraction of kinetic energy retained by neutron is

A

`(A/(A + 1))^(2)E`

B

`A/((A + 1)^2)E`

C

`((A - 1)/(A + 1))^(2)E`

D

`((A-1))/((A + 1)^2)E`

Text Solution

Verified by Experts

The correct Answer is:
C
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