A post driven into a river-bed stands 1 metre above the water surface. If the sun is $30^{\circ}$ ov

Question

A post driven into a river-bed stands 1 metre above the water surface. If the sun is $30^{\circ}$ over the horizon and the river is 2 metre deep then the length of the shadow thrown by the post at the bottom of river is\

Professor PC Thomas Classes · Answer

See detailed solution for explanation.