Physics 0625 · IGCSE · Radioactivity

Radioactivity — practice question

A student is investigating the count rate of a radioactive substance. How should he correct his reading to account for the background count?

  • AAdd the background count to his reading.
  • BIgnore the background count as it will not affect his reading.
  • CSubtract the background count from his reading.
  • DTake repeat readings to eliminate the background count.

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