A) 2 cm
B) 6 cm
C) 4 cm
D) 1 cm
Correct Answer: D
Solution :
From displacement method size of object,\[O=\sqrt{{{I}_{1}}{{I}_{2}}}\] Here, \[O=3\,\,cm,\,\,{{I}_{1}}=9\,\,cm\] \[\therefore \] \[3=\sqrt{9{{I}_{2}}}\] or \[{{I}_{2}}=1\,\,cm\]You need to login to perform this action.
You will be redirected in
3 sec