Home Physics Atomic and Nuclear Physics JEE Main 2021 A sample of a radioactive nucleus A disinteg…
Physics Atomic and Nuclear Physics JEE Main 2021 MCQ (Single Correct)

A sample of a radioactive nucleus A disintegrates to another radioactive nucleus B, which in turn disintegrates to some other stable nucleus C. Plot of a graph showing the variation of number of atoms of nucleus B vesus time is: (Assume that at t=0, there are no B atoms in the sample)

A
B
C
D

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Verified by Experts
The correct answer is:
B

Initially no. of atoms of B=0 after t=0, no. atoms of B will starts increasing & reaches maximum value when rate of decay of B=rate of formation of B.

After that maximum value, no. of atoms will starts decreasing as growth decay both are exponential functions, so best possible graph is

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