JEE Main 202116 Mar, Evening shiftPhysicsMediumAtoms and Nuclei183× since 2002Calculate the time interval between 33% decay and 67% decay if half-life of a substance is 20 minutes.AOption A. 40 minutesBOption B. 60 minutesCOption C. 13 minutesDOption D. 20 minutesCheckSkip · show solution
