Interactive practical

Gamma absorption by lead

Measure lead sheets with Vernier callipers, collect repeated counts and determine attenuation and half-value thickness.

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Practice: Gamma absorption by lead

OCR H557 — this practical matches your selected course; the questions check the method, data handling and practical skills.

Check your answers as you work. For written questions, use the marking points to assess your response.

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6 additional questions require A-Level Physics Premium access.

2 of 2 available questions match the selected filters. This session contains 2 questions.

Question 1 · 1 mark · Foundation · Practical · Diagnostic

Which graph is linear for exponential absorption of gamma rays?

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Question 2 · 3 marks · Standard · Practical · Practical method

Explain why the source–detector distance must stay fixed.