JEE PHYSICS MCQ: NUCLEI

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Application +4 | -1

A radio-isotope has a half-life of

5\,\,years

. The fraction of the atoms of this material that would decay in

15\,\,years

will be

View answer and explanation

Correct option: C

\mathrm{7/8}

Option C (

\mathrm{7/8}

) is correct because after 15 years, which is three half-lives, 7/8 of the material will have decayed.

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