Physics 0625 · IGCSE · Radioactivity

Radioactivity — practice question

A teacher is carrying out an investigation into radioactivity. The teacher records the background radiation level in the laboratory.
(a)[1]

State a single source of background radiation.

(b(i))[3]

Determine the half-life of the radioactive isotope. Use information in Fig. 12.1. Show on Fig. 12.1 how you worked out your value.

(b(ii))[1]

Describe one way to store the radioactive isotope safely.

Worked solution & mark scheme

This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: Buildings, rocks, natural radon, air, cosmic rays, the Sun, or food and drink

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