Four particles enter separate regions of the same uniform magnetic field

PHYSICS · Single correct · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism

Problem

Four particles enter separate regions of the same uniform magnetic field. Their speeds and the angles between their velocities and the field are: P: speed vv, angle 0∘0^{\circ} Q: speed 2v2v, angle 30∘30^{\circ} R: speed v2\dfrac{v}{2}, angle 90∘90^{\circ} S: speed vv, angle 60∘60^{\circ} Arrange the particles in ascending order of the magnitude of magnetic force experienced by them. (a) R,  S,  P,  QR,\;S,\;P,\;Q (b) P,  R,  S,  QP,\;R,\;S,\;Q (c) P,  S,  R,  QP,\;S,\;R,\;Q (d) R,  P,  S,  QR,\;P,\;S,\;Q

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