Nuclear Physics and RadioactivityMedium
Question
A radioactive material decays by simultaneous emission of two particles with respective half−lives 1620 and 810 years. The time (in years) after which one−fourth of the material remains is :-
Options
A.1080
B.2430
C.3240
D.4860
More Nuclear Physics and Radioactivity Questions
The half life of a radioactive element is 30 days, in 90 days the percentage of disintegrated part is :-...The masses of two isobars $^{64}_{29}\text{Cu}$ and $^{64}_{30}\text{Zn}$ are $63.9298 \text{ u}$ and $63.9292 \text{ u}...The energy radiated by a red giant star is produces by :-...10.38 gm. radioactive substance of half life 3.8 days, than after 19 days, remaining quantity is :-...The half life of a radioactive element is 10 days. If the mass of the specimen reduces to 1/10th then the time taken is ...