A-LevelPhysicsNuclear physicsMay/June 2018Paper 2 Q76 Marks
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. β⁻ particle kinetic energy 460 eV path of β⁻ particle uniform electric field in the plane of the paper Fig. 7.1
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