![Explain how the half-life of a short lived radioactive source can be obtained by use of a Geiger-Muller tube. Explain how the half-life of a short lived radioactive source can be obtained by use of a Geiger-Muller tube.](https://digitalteachers.co.ug/wp-content/uploads/2021/04/Bbosa3.jpg)
Explain how the half-life of a short lived radioactive source can be obtained by use of a Geiger-Muller tube.
Explain how the half-life of a short lived radioactive source can be obtained by use of a Geiger-Muller tube.
- Switch on the GM-tube, note and record the background count rate, A.
- Place a source of ionizing radiation near the GM-window.
- Note and record the count rate recorded the count rate at equal intervals.
- For each count rate recorded subtract the background count rate to get the true rate.
- Plot a graph of the count rate against time.
Find time t1 taken for the activity to reduce to A/2 and t2 taken for activity to reduce to A/4 from A/2
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CATEGORIES A-level modern physics
TAGS Dr. Bbosa Science