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9.20 Attimetamaterial is composed of two radioactive atoms A and where NO-NO
The decay constant of both kind of radioactive atoms is. However, A disintegrates to B
and B disintegrates to C. Which of the following figures represents the evolution of
Nyt/N, 10) with respect to timet?
NA) - No. of Atomsatt-
N-Ne of Batom att
Options
1
.
1
1
1. NBt)
Ng(0)
+
+
.
.
.
t
1/
1
NB(t)
2. NBO)
1
2X
1
NB(t)
NBO)
3.
-16
1
*
Net)
NB(0)
t
=
1
2x


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