Q. $O^{+ +},C^{+},He^{+ +}$ and $H^{+}$ ions are projected on the photographic plate with same velocity in a mass spectrograph. Which one will strike farthest
A) $O^{+ +}$
B) $C^{+}$
C) $He^{+ +}$
D) $H_{2}^{+}$
Explanation
(b) $2r = \frac{2mv}{qB} \Rightarrow 2r \propto \frac{m}{q} \Rightarrow \frac{m}{q}$ is maximum for $C^{+}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.