Question

A proton, deutron and an α-particle enter a magnetic field perpendicular to field with same velocity. What is the ratio of the radii of circular paths?(a) 1 : 2 : 2(b) 2 : 1 : 1(c) 1 : 1 : 2(d) 1 : 2 : 1

Answer 1

A should be the answer