Describe sound propagation ?

Sound propagation is the process by which sound waves travel through a medium, such as air, water, or solids. When a sound is produced, it creates vibrations in the particles of the medium, which then travel outward in all directions. These vibrations cause the particles to compress and expand, creating areas of high and low pressure known as sound waves.

As sound waves travel through the medium, they can be affected by various factors such as temperature, humidity, and obstacles in their path. The speed at which sound waves travel depends on the properties of the medium, with sound traveling faster in denser materials.

Sound waves can also be reflected, refracted, or absorbed as they encounter different surfaces or materials. Reflection occurs when sound waves bounce off a surface, changing their direction. Refraction occurs when sound waves change direction as they pass from one medium to another. Absorption occurs when sound waves are absorbed by a material, reducing their intensity.

Overall, sound propagation is a complex process that involves the interaction of sound waves with the medium and various environmental factors. It plays a crucial role in our ability to hear and communicate with the world around us.