Question 10
A rate meter connected to a Geiger-Muller tube gives a count rate of 2000 per minute when a radioactive source is placed nearby. If the half of the source is 30 minutes, then after 2 hours the count rate would be ___.
Objective
Question details
- Exam body
- NDA
- Subject
- Physics
- Year
- 2013/2014
- Question no.
- #10
- Type
- Objective
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