Would the Doppler Effect still apply in an observers reference frame if the observer would be the one moving past the ambulance instead of the ambulance moving (relative to the air)?

Question

Would the Doppler Effect still apply in an observers reference frame if the observer would be the one moving past the ambulance instead of the ambulance moving (relative to the air)?

In: Physics

Answer 1

Yes. The frequency shift is different if the listener is moving and the source is stationary compared to the listener is stationary and the source is moving. Also different if moving away or towards each other. Basically 4 cases.

Both moving towards or away would be yet 2 more cases.