Geiger counter is suitable for _________________?
Correct answer: C. Slow counting
- A. Fast counting
- B. Extremely fast counting
- C. Slow counting
- D. All situations
Explanation
A Geiger counter is useful for ordinary or relatively slow counting because its recovery time, called dead time, prevents it from registering every event in a very rapid stream. Extremely fast counting therefore gives inaccurate results, making slow counting the intended choice.
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About Radioactive Decay
Radioactive decay is the spontaneous transformation of unstable nuclei, described by decay constant, activity, half life and the exponential decay law. Work includes alpha, beta and gamma emissions, decay equations and remaining nuclei, with half life distinguished from the time required for complete decay.
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