An example of a mechanical wave is---------

A.

water waves

B.

radio waves

C.

x-rays

D.

light rays

Correct answer is A

A mechanical wave is a wave that is an oscillation of matter. 

A sound wave is a mechanical wave that propagates along or through a medium by particle-to-particle interaction.

Sound waves, water waves and seismic waves are some examples of mechanical waves mechanical wave.