A proton, an electron and a Helium nucleus, have the same energy.
They are in circular orbits in a plane due to magnetic field perpendicular
to the plane. Let be their respective radii, then,
Radius of charged particle -
m=mass of particle
P=momentum of particle
k= kinetic energy of particle
-
=>
proton electron
m
q e e e
and
So,
Option 1)
Option 2)
Option 3)
Option 4)
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