A sample of a radioactive nucleus A disintegrates to another radioactive nucleus B, which in turns 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 a t = 0, there are no B atoms in the sample)
A sample of a radioactive nucleus A disintegrates to another radioactive nucleus B, which in turns 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 a t = 0, there are no B atoms in the sample)
Option 1 -
A
Option 2 -
B
Option 3 -
C
Option 4 -
D
-
1 Answer
-
Correct Option - 2
Detailed Solution:Amount of B,
where K =
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N = N0e–λt
->t = λN = N0/e
So number of nuclei decayed = N0 – N
= N0 (1- 1/e)
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Density of nuclei is order of 1017 kg m-3.
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