If Nt = N0e-λt then number of disintegrated atoms between t1 to t2 (t2 > t1) will be :-

ᐃN = N1 - N2 = N0[e-λt1 - eλt2]

Nuclear Physics and RadioactivityHard

Question

If N_t = N₀e^-λt then number of disintegrated atoms between t₁ to t₂ (t₂ > t₁) will be :-

A.N₀[e^-λt₂ - e^λt₁]

B.N₀[- e^λt₂ - e^λt₁]

C.N₀[e^-λt₁ - e^λt₂]

D.None of these

ᐃN = N₁ - N₂ = N₀[e^-λt₁ - e^λt₂]

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