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 
and 
be their respective radii, then,
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
JEE Main 2019
As 
For proton, electron and 
-particle,
Also 
and 
As 
of all the particles is same then,
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