1 give reasons

A) Cinema halls and auditoriums are carpeted and their walls are coated with rough material

b) Echoes are not formed in our classrooms

Question

1 give reasons
A) Cinema halls and auditoriums are carpeted and their walls are
coated with rough material
b) Echoes are not formed in our classrooms

Arty Fowl · Accepted Answer

a) Cinema halls and audutoriums are carpeted and the walls are
made of rought material It is because these materials absorb the
sound and do not allow them from going out of as, some times the
sound can be a trouble to the people
b) An echo is produced when the sound waves bounce back and
forth on an even surface Echoes are not produced in a classroom
because of the furniture, people and other uneven things it These
things make the surface area in the room uneven If the classroom
would be empty the sound would echo because of the even surface in
it
hopithelpss !!

1 give reasons A) Cinema halls and auditoriums are carpeted and their walls are coated with rough material b) Echoes are not formed in our classrooms

1 give reasons

A) Cinema halls and auditoriums are carpeted and their walls are coated with rough material

b) Echoes are not formed in our classrooms