The half-life of a radioactive nuclide is 20 hrs. The fraction of the original activity that will remain after 40 hrs is ______. - Physics

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The half-life of a radioactive nuclide is 20 hrs. The fraction of the original activity that will remain after 40 hrs is ______.

Options

  • 1/8

  • 1/2

  • 1/4

  • 1/6

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Solution

The half-life of a radioactive nuclide is 20 hrs. The fraction of the original activity that will remain after 40 hrs is 1/4.

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