Physics (AS & A Level) · May / June 2018 · Paper 21 · Question 7

A β– particle from a radioactive source is travelling in a vacuum with kinetic energy 460 eV. The particle enters a uniform electric field at a right-angle and follows the path shown in Fig. 7.1. path of β– particle β– particle kinetic energy 460 eV uniform electric field in the plane of the paper Fig. 7.1

Read automatically from the paper; the printed page above is exact.