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 v, angle 0∘
Q: speed 2v, angle 30∘
R: speed 2v, angle 90∘
S: speed v, angle 60∘
Arrange the particles in ascending order of the magnitude of magnetic force experienced by them.
a) R,S,P,Q
b) P,R,S,Q
c) P,S,R,Q
d) R,P,S,Q