Msp ec a particle of mass m and charge q, moving with velocity v enters region il normal + as shown in the figure. region ii has a uniform magnetic field b perp

MSP EC A particle of mass m and charge q, moving with velocity v enters Region Il normal + as shown in the figure. Region II has a uniform magnetic field B perpendicular tot paper. The length of the Region ll is I. Choose the correct choice(s). the boundan he plane ofte 8. 5. 6 Region I Region II Region I 1. 8. q/B (A) The particle enters Region ll only if its velocity v> m ty v Q/B m (B) The particle enters Region IIl only if its velocity v< (C) Path length of the particle in Region I| is maximum when velocity v = q/B m (D) Time spent in Region I| is same for any v as long as the particle returns to Region