Question
Proton, Deuteron and alpha particle of the same kinetic energy is moving in circular trajectories in a constant magnetic field. The radii of the proton, deuteron and alpha particle are respectively rp, rd and rα. Which one of the following relations is correct?
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rα = rp= rd
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rα = rp< rd
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rα > rd> rp
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rα = rd> rp
Solution
B.
rα = rp< rd
For charged particle moving with a speed v, in magnetic field B, on a circular track of radius
