Engineering Board Exam Reviewer · Physics · medium

What is the decay constant of an isotope with a half-life of 8 days?

  1. 0.0866 per day
  2. 11.542 per day
  3. 0.1250 per day
  4. 5.5452 per day

Answer

A. 0.0866 per day

Solution

= 2/T1/2 = 0.693/8 = 0.0866 per day.

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