What is the quality of the sound of an ambulance’s siren when it moves toward a stationary hearer? What is the quality of the sound of an ambulance’s siren when it moves away from a stationary hearer?
Answer
Selection 1:
It is high-pitched.
Selection 2:
It is low-pitched.

Question

What is the quality of the sound of an ambulance’s siren when it moves toward a stationary hearer? What is the quality of the sound of an ambulance’s siren when it moves away from a stationary hearer?

Answer

Selection 1:

It is high-pitched.

Selection 2:

It is low-pitched.

Revolt · Accepted Answer

It is high-pitched.; Selection 1: It is high-pitched.; Selection 2: It is low-pitched.