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NEET2019PhysicsNuclear PhysicsActual

A sample has half life of 10³³ year. If initial number of nuclei of the sample is 26 10³⁴ . Then find out the number of nuclei decayed in 1 year.

Options

  1. A1.82
  2. B182
  3. C18.2
  4. D1820

Correct answer

B. 182

Step-by-step solution

aligned & - d N d t = N & -d N= 2 T_ 1 / 2 N d t= 0.7 10³³ 26 10³⁴ 1=182 . aligned

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