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JEE Main2012PhysicsNuclear PhysicsActual

The decay constants of a radioactive substance for and emission are _ and _ respectively. If the substance emits and simultaneously, then the average half life of the material will be

Options

  1. A2 T_ T_ T_ +T_
  2. BT_ +T_
  3. CT_ T_ T_ +T_
  4. D1 2 (T_ +T_ )

Correct answer

C. T_ T_ T_ +T_

Step-by-step solution

T_ a v = T_ T_ T_ +T_ If and B are emitted simultaneously.

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