Question

Propagation of sound can be visualized as

• A. Propagation of density variations
• B. Propagation of pressure variations
• C. A series of compressions and rarefactions
• D. All of the above

Answer 1

The correct option is D

All of the above

During vibration, when a particle moves forward, it compresses the air in front of it and creates a high pressure or high density region. This region is called compression. when a particle moves backward, it creates a low pressure or low density region. This region is called rarefaction.