(a)[2]
State what background radiation means. Suggest one source of it.
(b(i))[2]
Deduce the kind of radiation emitted by polonium-208. Explain your answer.
(b(ii))[3]
Write down the nuclide equation for the decay of polonium-208.
Physics 0625 · IGCSE · Radioactivity
Radioactivity — practice question
A radiation detector is positioned on a laboratory bench. It records a background count rate of 40 counts/minute.
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This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Low-level ionising radiation that is always present in the environment/everyday life” …
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