Radioactive source S S\,S emits α\alphaα-particles, β\betaβ-particles, and γ\gammaγ-rays. A detector is placed 10 cm away from SSS. A thin sheet of aluminum is placed between the source and the detector.
Which emissions from the source can be detected?
α\alphaα-particles and γ\gammaγ-rays only
β\betaβ-particles and γ\gammaγ-rays only
γ\gammaγ-rays only
α\alphaα-particles, β\betaβ-particles, and γ\gammaγ-rays
134 exam-style questions on CIE IGCSE Physics 5.2.2a Alpha, beta and gamma emission. Each one has a worked solution and a mark scheme showing where the marks go.