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Direct and Inverse Proportion

Direct and Inverse Proportion

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Question 27

The intensity of radiation, RRR, from a radioactive source is inversely proportional to the square of the distance, d d\,d cm, from the source.

R R\,R is given by the formula: R=162d2\displaystyle R = \frac{162}{d^2}R=d2162​

Find the radiation intensity when the distance is 3 cm.

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Direct and Inverse Proportion Questions

  1. GCSE
  2. /Maths
  3. /Direct and Inverse Proportion

50 exam-style questions on AQA GCSE Maths Direct and Inverse Proportion. Each one has a worked solution and a mark scheme showing where the marks go.

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