If the fraction of the atoms of a radioactive material left after 120years is \(\frac{1}{64}\),…

Physics JAMB 2018

If the fraction of the atoms of a radioactive material left after 120years is \(\frac{1}{64}\), what is the half-life of the material?  \(\frac{1}{64}\)

  • 20 years checkmark
  • 10 years
  • 2 years
  • 24 years

The correct answer is: A

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