A) 1.65
B) 1.25
C) 1.95
D) 2.15
Correct Answer: A
Solution :
The oscillation will be nearly of simple harmonic nature for which time period is given by \[T=2\pi \sqrt{\frac{I}{mgl}}=2\pi \sqrt{\left( \frac{m{{l}^{2}}}{3} \right)/mgl/3}\] \[=2\pi \sqrt{\frac{2l}{3g}}\] \[=2\pi \sqrt{\frac{2\times 1}{3\times 9.8}}=164\,s\]
You need to login to perform this action.
You will be redirected in
3 sec
