Atoms and Nuclei: JEE Main 2021 Physics question

JEE Main 2021 · 26 Feb, Evening shift · Q6103

JEE Main 202126 Feb, Evening shiftPhysicsEasyAtoms and Nuclei183× since 2002

A radioactive sample is undergoing

\alpha

decay. At any time t₁, its activity is A and another time t₂, the activity is

{A \over 5}

. What is the average life time for the sample?

JEE Main 2021 · 26 Feb, Evening shift · Q6103

JEE Main 202126 Feb, Evening shiftPhysicsEasyAtoms and Nuclei183× since 2002

A radioactive sample is undergoing

\alpha

decay. At any time t₁, its activity is A and another time t₂, the activity is

{A \over 5}

. What is the average life time for the sample?

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