JEE PHYSICS MCQ: NUCLEI

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Application +4 | -1

It is observed that only

6.25 \%

of a given radioactive sample is left undecayed after a period of 16 days. What is the decay constant of this sample, in day

{ }^{-1}

View answer and explanation

Correct option: A

0.173 \text { day }^{-1}

Option A (

0.173 \text{{ day }}^{-1}

) is correct because it is calculated using the half-life formula and the decay constant relationship.

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