experiment to measure half life

Question 1

what do you do

Answer 1

• write down the time
• use the stopclock and the counter to measure the number of counts in one minute
• wait for 10 min using clock on the wall then measure the counts in one min
• repeat this every 10 min for 2 hours
• measure the background count and subtract it from all readings
• plot a graph of corrected count per minute against time
• use graph to find the half life