A) 4 : 3
B) 3 : 4
C) 1 : 2
D) 2 : 1
Correct Answer: C
Solution :
Rate of disintegration a number of atoms left For X \[\frac{N}{{{N}_{0}}}={{\left( \frac{1}{2} \right)}^{2}}=\frac{1}{4}\] For Y \[\frac{N}{{{N}_{0}}}={{\left( \frac{1}{2} \right)}^{1}}=\frac{1}{2}\] \[\therefore \] \[\frac{{{R}_{X}}}{{{R}_{Y}}}=\frac{4}{{{N}_{0}}}=\frac{1}{2}\]You need to login to perform this action.
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