A rod of length L and mass M fixed at the origin at one end is placed along the x-axis at t = 0. It starts rotating about the z-axis in the x-y plane anti-clockwise as seen from the positive z-axis due to a force F always perpendicular to the rod acting at the free end. The power delivered when the rod completes one revolution is
1
\(F\sqrt \frac {3\pi LF}{M}\)
2
\(2F\sqrt \frac {3\pi LF}{M}\)
3
\(3F\sqrt \frac {3\pi LF}{M}\)
4
\(4F\sqrt \frac {3\pi LF}{M}\)