Nuclear Physics and RadioactivityHard

Question

Disintegration constant of a radioactive material is λ

Options

A.Its half life equal to
B.it mean lift equals
C. At  time to mean life, 63% of the initial radioactive is left undead
D.After 3-half lives, rd of the initial radioactive material is left undecayed

Solution

N = N0e-λt ⇒ = N0e-λT1/2
⇒ T1/2 = ⇒ Tmean =

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