TS EAMCET · Physics · Nuclear Physics
A radioactive nucleus can decay in two different processes with half life \(0.7 \mathrm{hr}\) and \(0.3 \mathrm{hr}\). The effective average life of the nucleus in minutes approximately is (value of \(\ln 2=0.7\) )
- A 14
- B 18
- C 24
- D 26
Answer & Solution
Correct Answer
(B) 18
Step-by-step Solution
Detailed explanation
Key Idea If a radioactive sample has more than one radioactive material then the effective half life. \(\frac{1}{T_{\text {eff T/2 }}}=\frac{1}{T_{1 \frac{1}{2}}}+\frac{1}{T_{2 \frac{1}{2}}}+\frac{1}{T_{3 \frac{1}{3}}}+\ldots\) Where, \(T_{n \frac{1}{2}}=\) half life of…
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