An \[\alpha \] particle and a proton travel with same velocity in a ma – McqOptions

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1.	An \[\alpha \] particle and a proton travel with same velocity in a magnetic field perpendicular to the direction of their velocities, find the ratio of the radii of their circular path [AIIMS 2004; DCE 2001, 03; Kerala PMT 2005]
A.	4 : 1
B.	1 : 4
C.	2 : 1
D.	1 : 2
Answer» D. 1 : 2

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