The half-life of a radioactive substance is 15 hours. If at some instance, the sample

PHYSICS
WAEC 2022

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 \(\frac{7}{8}\) of the sample to decay

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

Correct Answer: C. 45 hours



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