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CP11: Gamma Radiation Absorption

Investigate the absorption of gamma radiation by lead, verifying exponential absorption

Required PracticalEdexcelA-Level

πŸ”¬ Equipment Required

  • Sealed gamma source (e.g., Co-60)
  • Geiger-MΓΌller tube and counter
  • Lead sheets of various thicknesses
  • Ruler
  • Clamp stands
  • Stopwatch
  • Tongs for handling source

🦺 Safety Precautions

  • Follow CLEAPSS guidelines for radioactive sources
  • Minimise exposure time
  • Maximise distance from source
  • Use shielding when not measuring
  • Handle source with tongs only
  • Never point source at people
  • Return source to secure storage

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About CP11: Gamma Radiation Absorption

CP11: Gamma Radiation Absorption is a required practical for Edexcel A-Level Physics. This practical investigate the absorption of gamma radiation by lead, verifying exponential absorption

Students are expected to understand the method, identify and control variables, use appropriate equipment, analyse results, draw graphs, identify sources of error, suggest improvements, and consider safety precautions.

Questions on required practicals frequently appear in Edexcel A-Level Physics exams and can be worth significant marks. Practice with our AI-generated questions to master this practical.

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