A proton, an electron, and a Helium nucleus, have the same energy. The – McqOptions

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1.	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 rp, re and rHe be their respective radii, then,
A.	re > rp = rHe
B.	re < rp = rHe
C.	re < rp < rHe
D.	re > rp > rHe
Answer» C. re < rp < rHe

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