12. In two half-lives, the activity of a radioactive sample will have decreased from its original value
Question:
12. In two half-lives, the activity of a radioactive sample will have decreased from its original value to what percent:
(a) 25%,
(b) 50%,
(c) 75%, or
(d) 87.5%?
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Related Book For 
College Physics Essentials Electricity And Magnetism Optics Modern Physics Volume Two
ISBN: 9781032337272
8th Edition
Authors: Jerry D. Wilson, Anthony J. Buffa, Bo Lou
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