A rid of length l and mass is fixed at point O as shown in the figure and it is free to rotate about that point . Find the frequency (w) for small angular oscillation

Question

$(a)\;\sqrt{\large\frac{3g}{2L}}\qquad(b)\;\sqrt{\large\frac{g}{L}}\qquad(c)\;\sqrt{\large\frac{4g}{5L}}\qquad(d)\;\sqrt{\large\frac{3g}{L}}$