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Question: Answered & Verified by Expert
The half-life of a radioactive substance A is 4 days. The probability that a nucleus will decay in two half-lives is
PhysicsNuclear PhysicsNEET
Options:
  • A 14
  • B 34
  • C 12
  • D 1
Solution:
1027 Upvotes Verified Answer
The correct answer is: 34
After two half lives 14th fraction of nuclei will remain undecayed. Or, 34th fraction will decay. Hence, the probability that a nucleus decays in two half-lives is 34

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