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5.2 Radioactivity

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Question 150

A teacher conducts an experiment to measure radiation passing through a sheet of material.

Three students suggest ways the teacher can reduce her exposure to radiation:

  • Student 1: Point the radioactive source towards herself to inspect it closely.
  • Student 2: Use long-handled tongs to move the radioactive source.
  • Student 3: Limit the time the radioactive source is out of its lead-lined storage container.

Which students are correct?

A

1 and 2 only

B

2 and 3 only

C

3 only

D

1, 2 and 3

Markscheme

5.2 Radioactivity Questions

  1. IGCSE
  2. /Physics
  3. /5.2 Radioactivity

484 exam-style questions on CIE IGCSE Physics 5.2 Radioactivity, covering 5.2.1 Background radiation and measuring count rate, 5.2.2a Alpha, beta and gamma emission, 5.2.2b Deflection and ionising effects of nuclear radiation, 5.2.3a Radioactive decay, 5.2.3b Effects of decay on the nucleus and decay equations, 5.2.4a Half-life, 5.2.4b Choosing isotopes for applications, and 5.2.5 Effects of ionising radiation and safety precautions. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank