Question

Sound waves reflected at a convex surface are diminished.

(a) True

(b) False

The question was asked in an interview for job.

My question comes from Acoustics in portion Acoustics and Ventilation of Construction & Building Materials

Answer 1

Right choice is (b) False

To explain: Sound waves reflected at a concave surface are diminished while the sound waves reflected at convex surfaces are large and magnified. A convex surface is used to spread the sound waves throughout the room and a concave surface is used for the concentration of reflected waves at certain points.