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Half-life of a radioactive substance A is 4 days. The probability of a nucleus that,  from the given sample that it will decay in two half-lives is
  • a)
    1/4
  • b)
    3/4
  • c)
    1/2
  • d)
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Half-life of a radioactive substance A is 4 days. The probability of a...
After two half-lives 1/4 th fraction of nuclei will remain undecayed. Or, 3/4 th fraction will decay. Hence, the probability that a nucleus decays in two half lives is 3/4.
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Half-life of a radioactive substance A is 4 days. The probability of a nucleus that, from the given sample that it will decay in two half-lives isa)1/4b)3/4c)1/2d)Correct answer is option 'B'. Can you explain this answer?
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