What is the decay constant of a radioactive element whose half-life is 3 seconds

Physics WAEC 1996

What is the decay constant of a radioactive element whose half-life is 3 seconds

  • 0.132s-1
  • 0.23s-1 checkmark
  • 0.347s-1
  • 0.693s-1
  • 0.924s-1

The correct answer is: B

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