What fraction of decays is she observing with her apparatus

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Reference no: EM13995943

The ²¹⁰Po source used in a physics laboratory is labeled as having an activity of 1.00 µCi on the date it was prepared. A student measures the radioactivity of this source with a Geiger counter and observes 1000 counts per minute. She notices that the source was prepared 106 days before her lab. What fraction of the decays is she observing with her apparatus?

Reference no: EM13995943

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