A beam of α\alphaα-particles and β−\beta^-β−-particles is incident at right angles to a uniform magnetic field. Which statement about the deflection of the particles in the field is correct?
α\alphaα-particles deflect, but β−\beta^-β−-particles do not deflect.
Both α\alphaα-particles and β−\beta^-β−-particles deflect in the same direction.
α\alphaα-particles deflect in the opposite direction to β−\beta^-β−-particles.
Both particles continue in a straight line without deflecting.
484 exam-style questions on CIE IGCSE Physics 5.2 Radioactivity, covering 5.2.1 Background radiation and measuring count rate, 5.2.2a Alpha, beta and gamma emission, 5.2.2b Deflection and ionising effects of nuclear radiation, 5.2.3a Radioactive decay, 5.2.3b Effects of decay on the nucleus and decay equations, 5.2.4a Half-life, 5.2.4b Choosing isotopes for applications, and 5.2.5 Effects of ionising radiation and safety precautions. Each one has a worked solution and a mark scheme showing where the marks go.