Radioactive decay, half-life and uses

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Question 69
Easy

A student uses a Geiger-Müller tube to measure the background radiation count in a classroom. They record the counts over several 10-second intervals and calculate an average count rate.

Give one reason why any future measurement of the background radiation count over a 10-second interval is only an estimate.

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Radioactive decay, half-life and uses Questions

  1. GCSE
  2. /Physics
  3. /Radioactive decay, half-life and uses