The nuclear activity of a radioactive element becomes (1/8)^(th) of its initial value in 30 years. The half-life of radioactive element is _ _ _ _ _ _ y ears.

Atoms and Nuclei: JEE Main 2021 Physics question

JEE Main 2021 · 25 Jul, Evening shift · Q53

JEE Main 202125 Jul, Evening shiftPhysicsMediumAtoms and Nuclei183× since 2002

The nuclear activity of a radioactive element becomes

{\left( {{1 \over 8}} \right)^{th}}

of its initial value in 30 years. The half-life of radioactive element is _____________ years.

Your answerType your answer. Integers and decimals are accepted.

JEE Main 2021 Atoms and Nuclei Question with Answer (25 Jul Evening shift, Q53) | JEE Arc

JEE Main 2021 · 25 Jul, Evening shift · Q53

JEE Main 202125 Jul, Evening shiftPhysicsMediumAtoms and Nuclei183× since 2002

The nuclear activity of a radioactive element becomes

{\left( {{1 \over 8}} \right)^{th}}

of its initial value in 30 years. The half-life of radioactive element is _____________ years.

Your answerType your answer. Integers and decimals are accepted.