A newly constructed empty room produces a strong echo when someone speaks. Once soft sofas, heavy curtains,…
A newly constructed empty room produces a strong echo when someone speaks. Once soft sofas, heavy curtains, and carpets are added, the echo disappears. Why?
Furniture absorbs heat and stops sound
Soft and porous materials absorb sound waves instead of reflecting them
Curtains increase the speed of sound in the room
Carpets block sound from entering the room
Solution
Soft, porous materials like carpets and curtains are good sound absorbers, preventing reflection and eliminating echoes.