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NEET2008PhysicsNuclear PhysicsActual

Two radioactive materials X₁ and X₂ have decay constants 5 and respectively. If initially they have the same number of nuclei, then the ratio of the number of nuclei of X ₁ to that of X₂ will be 1 e after a time

Options

  1. Ae
  2. B1 2
  3. C1 4

Correct answer

3

Step-by-step solution

aligned & N_ x₁ N_ x₂ = e^ -5 t e^ - t = 1 e & t= 1 4 aligned

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