Assertion: wave | /r/Synonym | mechanical waves
Facets:
Source sentences:
text: Waves which require any medium for their propagation are called mechanical waves.
text: Waves which do not require a medium for their propagation are called a non-mechanical wave.
text: Waves that require a medium for their propagation are called mechanical waves or elastic waves.
text: Such waves are called "mechanical waves", which require a material medium to travel in in order to exist.