which of the following materials tend to muffle sound?\na foam rubber\nb glass\nc metal\nd air
which of the following materials tend to muffle sound?\na foam rubber\nb glass\nc metal\nd air
Answer
Brief Explanations:
Foam rubber has a porous structure which absorbs sound waves, reducing their intensity and muffling sound. Glass, metal and air are not as effective at muffling sound as foam rubber. Glass and metal are hard and reflective, and air is a gas with low - density and does not absorb sound well for muffling purposes.
Answer:
A. foam rubber