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Question

What is a decay constant?


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Solution

  1. Decay constant is also known as disintegration constant.
  2. It is the ratio of number of radioactive atoms disintegrating in a short interval of time to the number of atoms of same kind present at the starting.
  3. It is represented by the symbol λ.
  4. The unit used for decay constant is s-1.
  5. It is the reciprocal of decay time.

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