In a paper mill, a beta radiation source and detector are used to monitor the thickness of the paper produced. The nominal (ideal) detected count rate is 350 counts per second350\text{ counts per second}350 counts per second.
The rollers must be adjusted if the count rate increases by 6%.
Calculate the maximum count rate that is allowed before the rollers need to be adjusted.
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.