Question

A Fixed source emits sound of frequency 1000 Hz. What is the frequency as heard by a observer?
a.) at rest
b.) moving towards the source at a constant speed of 20 ms
-1 and
c.) moving away from the source at the same rate.
please answer it it's emergency ​

Answer 1

Answer:

moving towards the sources at a constant speed of 20ms 1and

Answer 2

Explanation:

moving away from the source at the same rate.

please answer it it's emergency all movie