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Question

A radioactive nucleus can decay by two different processes. The mean value period for the first process is t1 and that for the second process is t2. The effective mean value period for the two processes is
  1. t1+t2
  2. t1t2t1+t2
  3. t1t2
  4. t1+t22

A
t1+t22
B
t1+t2
C
t1t2
D
t1t2t1+t2
Solution
Verified by Toppr

Mean value:
λ1=1t1
λ2=1t2

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