Which row correctly compares the relative ionising effects and penetrating abilities of β\betaβ-particles and γ\gammaγ-rays?
Ionising effectPenetrating abilityAβ less than γβ greater than γBβ less than γβ less than γCβ greater than γβ less than γDβ greater than γβ greater than γ \begin{array}{|c|c|c|} \hline & \text{Ionising effect} & \text{Penetrating ability} \\ \hline \textbf{A} & \beta \text{ less than } \gamma & \beta \text{ greater than } \gamma \\ \hline \textbf{B} & \beta \text{ less than } \gamma & \beta \text{ less than } \gamma \\ \hline \textbf{C} & \beta \text{ greater than } \gamma & \beta \text{ less than } \gamma \\ \hline \textbf{D} & \beta \text{ greater than } \gamma & \beta \text{ greater than } \gamma \\ \hline \end{array} ABCDIonising effectβ less than γβ less than γβ greater than γβ greater than γPenetrating abilityβ greater than γβ less than γβ less than γβ greater than γRow A
Row B
Row C
Row D
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.