Question

Fill in the blank.

When sound travels in a medium _______ travels in form of a wave.

• A. the source
• B. the particles of the medium
• C. the disturbance
• D. the medium

Answer 1

The correct option is C the disturbance

When sound travels in a medium the disturbance travels in form of a wave.
Sound is produced when something vibrates. That is, a disturbance is produced. The vibrating body or disturbance causes the medium (water, air, etc.) around it to vibrate. Vibrations in air are called traveling longitudinal waves, which we can hear. Sound waves consist of areas of high and low pressure called compressions and rarefactions, respectively.