When an -particle of mass 'm' moving with velocity '' bombards on a heavy nucleus of charge 'Ze', its distance of closet approach from the nucleus depends on m as:
m
Whwn particle is a distance of closest approach its velocity =0. Hence kinetic energy =0. Initial since particles is at far distance its potential energy =0.
Initial energy =
Final energy =
is distance of current of closest approach.
From principle of energy conservation initial energy = Final Energy
Option 1)
Correct
Option 2)
Incorrect
Option 3)
Incorrect
Option 4)
m
Incorrect