Detection of Radioactivity

Detection of Radioactivity problem 18

A detector of ionising radiation measures the background count rate in a classroom where there are no radioactive samples present.

The readings, in counts/minute, taken over a period of time are shown in the table below:

  • State two possible sources of this background radiation.

  • Explain why the readings are not the same


main author and content editor: Noble Menedi Firima