The half-life of a radioactive nucleus is $5$ years, The fraction of the original sample that would decay in $15$ years is
The half-life of a radioactive nucleus is $5$ years, The fraction of the original sample that would decay in $15$ years is
- [JEE MAIN 2023]
- A
$\frac{1}{8}$
- B
$\frac{1}{4}$
- C
$\frac{7}{8}$
- D
$\frac{3}{4}$
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- [IIT 2001]
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- [JEE MAIN 2014]
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