Question

what do you give a name for sound that are originated from a source where the frequency are constantly changing in a random manner

Answer 1

Answer:

You, the person hearing the sounds, are called the observer or listener and the thing emitting the sound is called the source. As mentioned in the introduction, there are two situations which lead to the Doppler effect:

When the source moves relative to a stationary observer.

When the observer moves relative to a stationary source.

Answer 2

It can be seen that as frequency drops atmospheric noise dominates other sources. In radio reception, noise is unwanted random electrical signals always present in a ... The limiting noise ...