Question

Picture me at the front of the classroom with two speakers attached to a rotating frame, so that they are some fixed distance from each other, but they rotate together. You are standing near the back of the room. The speakers emit a constant frequency. What do you hear as I rotate the speakers left and right? (It may be helpful to draw a few sketches.)

Answer 1

when you are just back of the room

according to the Doppler effect

the speakers are here producing or emiting the same frequency

and also having the fixed distance and rotate together.

so when you are standing the back of the room you will hear the sound which is emitting from the speakers with no loss.

so simple according to the Doppler effect

the there is no loss in the sound intensity beacuse thespeakers are in the room

and producing with same frequency.