Question

What should be the dimensions and the shape of classrooms so that no echo can be produced there?​

Answer 1

AnSwEr

For no echo to be produced in a classroom, the classroom should be square-shaped with the distance between the walls be less than 17.2 m. Also, the ceiling should be curved shaped so that the reflection of the sound wave is uniform throughout the room.

Answer 2

for no Echo to be produced in a classroom the classroom should be square shape with distance between the walls to be less than 17. 2 m also the ceiling should be curved shape so that the reflection of sound wave is uniform throughout the room