If half life of a radioactive substance is 10 hours, then its mean life is....

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Question If half life of a radioactive substance is 10 hours, then its mean life is
(A) \( 14.4 \mathrm{~h} \)
(B) \( 7.2 \mathrm{~h} \)
(C) \( 20 \mathrm{~h} \)
(D) \( 6.93 \mathrm{~h} \)📲PW App Link - https://bit.ly/YTAI_PWAP 🌐PW Website - https://www.pw.live



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