A) \[\frac{1}{\lambda }\text{and}\frac{{{\log }_{e}}2}{\lambda }\]
B) \[\frac{{{\log }_{e}}2}{\lambda }\text{and}\frac{1}{\lambda }\]
C) \[\frac{\lambda }{{{\log }_{e}}2}\text{and}\,\frac{1}{\lambda }\]
D) \[\frac{\lambda }{{{\log }_{e}}2}\text{and}\,\text{2}\lambda \]
Correct Answer: B
Solution :
If decay constant is\[\lambda ,\] Mean life \[\tau =\frac{1}{\lambda }\] and Half life\[=\frac{{{\log }_{e}}2}{\lambda }\]
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