List of top Physics Questions on Radioactive Decay asked in AP EAPCET

The type of radioactive decay that involves the emission of a positron is
If the half-life of a radioactive material is 10 years, then the percentage of the material decayed in 30 years is
If the time taken for a radioactive substance to decay 8% to 77% is 12 minutes, then the half life of the substance in minutes is
The relation between the mean life time \( \tau \) and the half life time \( T_{1/2} \) of a radioactive substance is:
A radioactive element A with half life 3 hours decays to a stable element B. After a time $ t $, the ratio of A and B atoms is 1:16 then the time $ t $ in hours is
An ancient discovery found a sample, where \(75\%\) of the original carbon \((C^{14})\) remains. Then the age of the sample is \((T_{1/2}(C^{14})=5730\ \text{years},\ \ln0.5=-0.7,\ \ln(0.75)=-0.3)\)