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AP EAMCET2012PhysicsNuclear Physics

The half-life of a radioactive element is 10 ~h . The fraction of initial radioactivity of the element that will remain after 40 ~h is

Options

  1. A1 2
  2. B1 16
  3. C1 8
  4. D1 4

Correct answer

B. 1 16

Step-by-step solution

After 4 half-lifes N₀ 2^4 = N₀ 16

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