A) \[0.047\,\,s\]
B) \[0.055\,\,s\]
C) \[0.034\text{ }s\]
D) \[0.065\text{ }s\]
Correct Answer: A
Solution :
Speed of the wave \[=\sqrt{\frac{T}{\mu }}=\sqrt{\frac{500}{m/I}}\] \[=\sqrt{\frac{\frac{400}{3}}{0.25}}=\sqrt{\frac{400\times 25}{3\times 100}}\] \[=5.77\] \[\Rightarrow \] So time taken by disturbance to reach after end \[=\frac{0.25}{5.77}=0.043\,s=0.47\]You need to login to perform this action.
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