A neutron moving with velocity v collides elastically with an atom of mass number A. If the collision is head on and the initial kinetic energy of the neutron is E, then the final kinetic energy of the neutron after the collision is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Let 
be the final velocity of neutron, then
[ 
is the initial velocity of atom]
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