A proton carrying 1 MeV kinetic energy is moving in a circular path of – McqOptions

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1.	A proton carrying 1 MeV kinetic energy is moving in a circular path of radius R in uniform magnetic field. What should be the energy of an a-particle to describe a circle of same radius in the same field?
A.	2 MeV
B.	1 MeV
C.	0.5 MeV
D.	4 MeV
Answer» C. 0.5 MeV

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