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6.3 Nuclear equations and decay

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Question 53

A student uses a Geiger-Müller tube and a counter to measure the background radiation in a laboratory.

The reading on the counter is 28 counts per minute.

The student then places a gamma radiation source 20 cm in front of the Geiger-Müller tube.

The new reading on the counter is 385 counts per minute.

Calculate the count rate that is detected from the gamma source alone.

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Markscheme

6.3 Nuclear equations and decay Questions

  1. GCSE
  2. /Physics
  3. /6.3 Nuclear equations and decay

90 exam-style questions on Edexcel GCSE Physics 6.3 Nuclear equations and decay, covering 6.3.1 Beta-minus and beta-plus decay, 6.3.2 Effects of decay on the nucleus, and 6.3.3 Balancing nuclear equations. Each one has a worked solution and a mark scheme showing where the marks go.

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