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The Half-life Of A Radioactive Substance Is 15 Hours. If At Some Instance, The Sample Has A Mass Of 512 G, Calculate The Time It Will Take 78 Of The Sample To Decay - Erudites Academy

Categories: Physics WAEC

The half-life of a radioactive substance is 15 hours. If at some instance, the sample has a mass of 512 g, calculate the time it will take 78 of the sample to decay

A. 15 hours
B. 30 hours
C. 45 hours
D. 60 hours

Correct Answer:

Option C – 45 hours

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