from the top of a h meter high cliff , the angles of depression of the top and the bottom of a tower are observed to be $30^{\circ}$ and $60^{\circ}$ respectively . the height of the tower is

Question

$\begin{array}{1 1} \large\frac{h}{3} \\ \large\frac{2h}{3} \\ \large\frac{h}{\sqrt 3} \\ \large\frac{2h}{\sqrt 3} \end{array} $