Answered: (a) The 210 Po source used in a physics…

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter10: Nuclear Physics

Section: Chapter Questions

Problem 42P: , The 210Po source used in a physics laboratory is labeled as having an activity of 1.0Cion the date...

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(a) The ²¹⁰ Po source used in a physics laboratory is labeled as having an activity of 1.0 μCi on the date it was prepared. A student measures the radioactivity of this source with a Geiger counter and observes 1500 counts per minute. She notices that the source was prepared 120 days before her lab. What fraction of the decays is she observing with her apparatus? (b) Identify some of the reasons that only a fraction of the α s emitted are observed by the detector.

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