Physics · 2021
JEE Main · 16 March 2021, Shift 2 · Q10
Calculate the time interval between 33 % decay and 67 % decay if half-life of a substance is 20 minutes.
Calculate the time interval between $\displaystyle 33 \%$ decay and $\displaystyle 67 \%$ decay if half-life of a substance is $\displaystyle 20$ minutes.
Official answer
(1)
$\displaystyle 20$ minutes
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