The count rate due to a sample of a radioactive isotope is measured for 80 minutes
PHYSICS · Numerical · A Level · Physics · Nuclear physics · Nuclear physics
Problem
The count rate due to a sample of a radioactive isotope is measured for 80 minutes.| Time (minutes) | Count rate (counts per second) |
|---|---|
| 0 | 480 |
| 20 | 380 |
| 40 | 300 |
| 60 | 240 |
| 80 | 190 |