Question

Describe with the help of diagram, how compression and rarefactions are produced in air near a source of sound?

Answer 1

Hi there !!


<>When an object is struck hard , it starts to vibrate.

<> The object starts to vibrate in forward and backward directions

<> The vibrating body , starts to move forward.

<> As it moves forward , it creates an area of high pressure.

<>This area of high pressure is known as compression

<>Also , when the object moves backward , it creates an area of less pressure around it surroundings .

<> This area of low pressure is known as rarefaction.

<> It moves forward and backward as a series of 
alternate compressions(C) and rarefactions.(R)

<> The object continues to move forward in the form of alternate compressions and rarefactions.

Answer 2

Answer:

When an object is struck hard , it starts to vibrate.

The object starts to vibrate in forward and backward directions

The vibrating body , starts to move forward.

As it moves forward , it creates an area of high pressure.

This area of high pressure is known as compression

Also , when the object moves backward , it creates an area of less pressure around it surroundings .

This area of low pressure is known as rarefaction.

It moves forward and backward as a series of alternate compressions(C) and rarefactions.(R)

The object continues to move forward in the form of alternate compressions and rarefactions.

Explanation: