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CUSAT 2021 BTech Solved Paper Shift 2

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Question : 6

Total: 250

If λ is the decay constant, T1∕2 is the half life and T is the mean life of a radioactive element, then which of the following is true

T1∕2=‌
1
λ
,T=‌
ln‌2
λ
T1∕2=‌
ln‌2
λ
,T=‌
1
λ
T1∕2=λ‌ln‌2,T=‌
1
λ
T1∕2=‌
λ
ln‌2
,T=‌
ln‌2
λ

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