Atomic structure and ionising radiation

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Question 45
Easy

An environmental officer uses a portable radiation survey meter to monitor radiation levels at a site.

Before testing any soil samples, she sets up the meter in her vehicle parked far away from the site.

With no soil samples nearby, the survey meter records 84 counts over a 3-minute period.

State why the survey meter still records a reading when no samples are present.

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Atomic structure and ionising radiation Questions

  1. GCSE
  2. /Physics
  3. /Atomic structure and ionising radiation