A) 9 : 4
B) 2 : 3
C) 3 : 2
D) 4 : 9
Correct Answer: A
Solution :
Intensity \[I\propto {{(displacement)}^{2}}\] \[{{r}_{p}}=2\,m\]and \[{{r}_{Q}}=3\,m\] \[\therefore \]\[\frac{{{I}_{_{P}}}}{{{I}_{Q}}}={{\left( \frac{{{r}_{Q}}}{{{r}_{P}}} \right)}^{2}}={{\left( \frac{3}{2} \right)}^{2}}=\frac{9}{4}\]\[\Rightarrow \] \[{{I}_{P}}:{{I}_{Q}}=9:4\]You need to login to perform this action.
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