Question

Consider the following:

I. The speed of the observer;

II. The speed of the source;

III. The loudness of the sound.


In the Doppler effect for sound waves, which factors affect the frequency that the observer hears?


1. B only

2. None of these

3. C only

4. A only

5. A, B, and C

6. A and C only

7. B and C only

8. A and B only

Answer 1

A and B is common to both of