O-LevelPhysicsNuclear Physics5054/12 · May/June 2016 · Q381 Mark

Which states the three types of radiation emitted by radioactive isotopes in order of their ionising effect from highest to lowest?

Aalpha-particles, beta-particles, gamma-rays

Balpha-particles, gamma-rays, beta-particles

Cbeta-particles, gamma-rays, alpha-particles

Dgamma-rays, beta-particles, alpha-particles

✓ Correct answer

A: alpha-particles, beta-particles, gamma-rays

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Topic: Nuclear Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2016 Paper 1 Variant 2, question 38.

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