Physics - Magnetism Question with Solution | TestHub

The particle enters Region III only if its velocity $\mathrm{v}>\frac{\mathrm{q}\ell \mathrm{B}}{\mathrm{m}}$

The particle enters Region III only if its velocity $\mathrm{v}<\frac{\mathrm{q}\ell \mathrm{B}}{\mathrm{m}}$

Time spent by particle in Region II is $\frac{\pi m}{qB}$ when $v<\frac{q\ell B}{m}$

Time spent in Region II is same for any velocity v as long as the particle returns to Region I