A) 1.60 sec
B) 1.80 sec
C) 2.0 sec
D) 2.40 sec
Correct Answer: D
Solution :
This is the special case of physical pendulum and in this case \[T=2\pi \sqrt{\frac{2l}{3g}}\] \[\Rightarrow \] \[T=2\times 3.14\sqrt{\frac{2\times 2}{3\times 9.8}}=2.31\sec \approx 2.4\sec \]You need to login to perform this action.
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