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The probability that a particular nucleus of 38 Cl will undergo beta decay in any time interval of 4 s is T 1 / 2 f o r 38 Cl i s 37 .2 min

Options

  1. A3.1 × 10 - 4
  2. B6.2 × 10 - 4
  3. C12.4 × 10 -4
  4. D24.8 × 10 -4

Correct answer

C. 12.4 × 10 -4

Step-by-step solution

Probability for a particular nucleus to decay in any time interval d t is d N N = λ d t = 0.693 T 1 2 × 4 = 12.4 × 10 - 4

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