The reading on a detector placed near a radioactive material is 536 counts per second.
The background count rate is 44 counts per second.
The half-life of the radioactive material is 34 hours.
What is the reading on the detector after 68 hours?
A 44 counts per second
B 123 counts per second
C 134 counts per second
D 167 counts per second
Share
Answer:
D) 167 counts per second