A) 2 unit
B) 9 unit
C) 18 unit
D) 36 unit
Correct Answer: B
Solution :
[b] At resonance, amplitude of oscillation is maximum \[\Rightarrow 2{{\omega }^{2}}\text{ }-\text{ }36\omega \text{ }+\text{ }9\text{ }is\text{ }minimum\] \[\Rightarrow \,4\omega -36=0\](derivative is zero) \[\Rightarrow \,\omega =9\]You need to login to perform this action.
You will be redirected in
3 sec