Physics - Sound Wave Question with Solution | TestHub

A source of the sound of frequency$\text{600}\text{Hz}$is placed inside water. The speed of sound in water is$\text{1500}{\text{m s}}^{-1}$and in the air, it is$\text{300}{\text{m s}}^{-1}$The frequency of sound recorded by an observer who is standing in the air is