Experiment 18
THE EFFECT OF DISTANCE ON INTENSITY OF RADIATION

ANALYSIS


1.  Draw a graph of ND (the number of counts in 5 minutes) vs. 1/d.

2.  Draw a graph of ND vs. 1/d2.

3.  Answer Question 1 on the Worksheet.

4  Make a modified graph of ND vs. . Find the slope and enter it in cell D31. We are assuming that a = 0.60 cm following eqn (4).

5.  Answer Question 2 on the Worksheet.