Question

why do we hear the sound of a car horn the before car reaches us ?​

Answer 1

Answer:

We can hear the sound of a horn before actually seeing the car because the velocity of sound is much greater than that of the fastest car. Cite an experiment to show that sound needs a material medium for its propagation. ... Sound is a mechanical wave which needs a material medium to travel.

Answer 2

Explanation:

We can hear the sound of a horn before actually seeing the car because the velocity of sound is much greater than that of the fastest car. Cite an experiment to show that sound needs a material medium for its propagation. Sound is a mechanical wave which needs a material medium to travel