One of the prongs of a tuning fork is struck against a rigid wall. A to and fro motion of the prongs is observed. Then, the vibrating fork is touched to a still water surface.
Which of the following phenomena is observed in the water?
Water surface starts vibrating
When a vibrating body is touched to another body, the vibrations of the first body get transmitted to the second body. Therefore, when the vibrating tuning fork is touched to the water surface, the vibrations of the fork get transmitted to the water, causing the water surface to start vibrating.