engineering recuitment BARC Stipendiary Trainee Category I 2023 Mock Test Physics Moving Charges and Magnetism Motion in a Magnetic Field
A proton and an α-particle, having kinetic energies Kp and Kα respectively, enter into a magnetic field at right angles. The ratio of the radii of trajectory of proton to that of α-particle is 2 ∶ 1. The ratio of Kp ∶ Kα is :
1
1 ∶ 4
2
4 ∶ 1
3
8 ∶ 1
4
1 ∶ 8