Question

We cannot hear an echo produced in a closed room.​

Answer 1

$\huge{\fbox{\fbox{\bigstar{\mathfrak{\pink{Answer::}}}}}}$

It is becoz to produce an echo the minimum distance required between the object of reflection of sound and source of sound is 17 m.

HOPE IT HELP$...!!!

@being_SaRcAsTiC

Answer 2

Answer:

Yes, Because there are many sound absorbing things present in the closed room that absorbs the sound and noice.

That's why the echo can't be produced in the closed room.