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6.3 Nuclear equations and decay

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Question 9

In a packaging plant, a gamma radiation source and a Geiger-Müller (GM) tube detector are used to monitor the density of a liquid detergent flowing through a delivery pipe. The nominal (ideal) detected count rate is $minute560\text{ counts per minute}$ .

If the density of the detergent drops, the detected count rate increases. The flow valve must be shut off if the count rate increases by 7.5%.

Calculate the maximum count rate that is allowed before the valve must be shut off.

[2]

Markscheme

6.3 Nuclear equations and decay Questions

GCSE
Physics
6.3 Nuclear equations and decay

90 exam-style questions on Edexcel GCSE Physics 6.3 Nuclear equations and decay. Each one has a worked solution and a mark scheme showing where the marks go.

6.3 Nuclear equations and decay

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6.3 Nuclear equations and decay

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Question 9

If the density of the detergent drops, the detected count rate increases. The flow valve must be shut off if the count rate increases by 7.5%.

Calculate the maximum count rate that is allowed before the valve must be shut off.

[2]

Markscheme

6.3 Nuclear equations and decay Questions

GCSE
Physics
6.3 Nuclear equations and decay

90 exam-style questions on Edexcel GCSE Physics 6.3 Nuclear equations and decay. Each one has a worked solution and a mark scheme showing where the marks go.