Questions
A radioactive nuclei A produces a daughter “B”. Which decays to a stable product “C” then the variation of a population of A,B & C with time is
a
b
c
d
None
detailed solution
Correct option is C
Initially population of A is large. It decays fast. Population of B build up fast. With decreasing population of A the rate of formation of B decreases. While it’s rate of decay will keep rising till its population get’s maximum, population of B starts decreasing afterward due to small rate of formation of B. Population of C rises and eventually becomes N0Talk to our academic expert!
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In a radioactive material, fraction of active material remaining after time t is 9/16. The fraction that was remaining after t/2 is :
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