Calculate the percentage of s.d. with net counts

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A G.M. counter records 4,900 background counts in 100 min. With a radioactive source in position, the same total number of counts are recorded in 20 min. Calculate the percentage of S.D. with net counts due to the source

Reference no: EM131230047

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Calculate the percentage of s.d. with net counts : A G.M. counter records 4,900 background counts in 100 min. With a radioactive source in position, the same total number of counts are recorded in 20 min. Calculate the percentage of S.D. with net counts due to the source
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