9702 · topic questions
Radioactive decay
9 past-paper questions on Radioactive decay
On Fig. 4.3, sketch the variation of h with time t from t = 0 to t = 6.0s.
Practise the full question →Determine, in terms of T, the time at which the two samples will have equal activities.
Practise the full question →Nucleus X undergoes β⁻ decay to form nucleus Z. Complete the equation representing this decay.
Practise the full question →Determine the activity of 2.1 × 10⁻¹²kg of fluorine-18.
Practise the full question →This isotope of samarium is radioactive and decays by emitting particles. Gamma-radiation is not emitted. The energy spectrum of…
Practise the full question →A sample of a radioactive substance emits particles that are positively charged and have a continuous range of kinetic energies.…
Practise the full question →In β⁻ decay, a neutron decays to form a proton. Theory predicts that an antineutron should decay to form an antiproton. A…
Practise the full question →State the names of the particles emitted as Q decays to form R.
Practise the full question →Suggest why 110 minutes is a suitable half-life for a nuclide used as a tracer in medical diagnosis.
Practise the full question →
Question stems are shortened previews. Open a question to attempt the full version and have it marked.
Radioactive decay (9702) past-paper questions — marked instantly
These are real Cambridge Physics past-paper questions on Radioactive decay. Open one, attempt it, then upload your working — MarkScheme grades it against the official 9702 mark scheme so you see exactly where the marks are won and lost on this topic.
Frequently asked questions
- How many Radioactive decay questions are there for 9702?
- This page collects 9 recent Cambridge Physics (9702) past-paper questions tagged to Radioactive decay. Each links straight to instant marking against the official 9702 scheme.
- How are Radioactive decay answers marked?
- Type or photograph your working and MarkScheme scores it against the real 9702 mark scheme for this topic — method, accuracy and any band descriptors — so you see exactly where the marks are.
- Where can I learn Radioactive decay first?
- Start with the free Physics lesson on Radioactive decay, then come back and drill past-paper questions under timed conditions.