Physics (AS & A Level) · Oct / Nov 2023 · Paper 12 · Question 39

The charge-to-mass ratio r of a particle is given by the equation shown. r = charge on particle / mass of particle The value of r is determined for an α-particle, a β+ particle and a proton p. Which list shows the particles in order of increasing magnitude of r from left to right?

1. Aα → β+ → p
2. Bα → p → β+
3. Cp → α → β+
4. Dp → β+ → α

As printed in the paper