A thin uniform rod of length l is pivoted at its upper end. It is free to swing in a vertical plane. Its time period for oscillations of small amplitude is
1
\(2 \pi \sqrt{l / g}\)
2
\(2 \pi \sqrt{2 l / 3 g}\)
3
\(2 \pi \sqrt{3 l / 2 g}\)
4
\(2 \pi \sqrt{l / 2 g}\)
5
Question Not Attempted