JEE Main 20254 Apr, Evening shiftPhysicsEasyAtoms and Nuclei183× since 2002A radioactive material P first decays into Q and then Q decays to non-radioactive material R. Which of the following figure represents time dependent mass of P, Q and R ?AOption A. Graph 1 (mass vs time): P rises and saturates at the top, R rises and saturates slightly lower, Q decreasesBOption B. Graph 2 (mass vs time): P falls quickly, R rises to a peak then falls, Q keeps risingCOption C. Graph 3 (mass vs time): P decreases, Q and R both rise steadilyDOption D. Graph 4 (mass vs time): P decreases exponentially, Q rises to a peak then falls, R rises and saturatesCheckStep-by-step hintSkip · show solution