Atoms And Nuclei Question 367
Question: For a radioactive sample the counting rate changes from 6520 counts/minute to 3260 counts minute in 2 minutes. Determine the decay constant.
Options:
A) 1.78 per sec
B) 0.78 per sec
C) 2.78 per sec
D) 5.78 per sec
Show Answer
Answer:
Correct Answer: D
Solution:
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at time
or
