Magnetic field due to currentHard
Question
A proton, a deuteron and an α-particle having the same kinetic energy are moving in circular trajectories in a constant magnetic field. If rp, rd and rα denote respectively the radii of the trajectories of these particles, then :
Options
A.rα = rp < rd
B.rα > rd < rp
C.rα = rd > rp
D.rp = rd = rα
; Rα = 
; Rp = 
; Rd = 
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