Sound waves are produced in three different situations: Case A: Source is stationary; Medium is stat

Question

Sound waves are produced in three different situations: Case A: Source is stationary; Medium is stationary; Speed of sound with respect to ground is $v_1$. Case B: Source is moving with $u$; Medium is stationary: Speed of sound with respect to ground is $v_2$. Case C: Source is stationary; Medium is moving in the direction of observer by $u$; Speed of sound with respect to ground is $v_3$. Identify the correct alternative.

Professor PC Thomas Classes · Answer

The wave always travel with respect to medium, if the medium is also traveling with respect to observer then the speed of sound wave will also change with respect to observer.