The absorption ratio of a surface is the ratio of _______

In which of the following absorbents, absorption takes place due to the frictional losses occurring due to the to and fr…

Because of high concentration of reflected sound at the Sound foci, there is a deficiency of reflected sound at some poi…

The rate of ventilation depends on both the wind effect and the stack effect.

The rate of flow of air arising due to the difference in temperature of outside and inside is given by the expression __…

In the acoustical design of a studio, the ratio of height, breadth and length of the studio should be _____

The average height for small halls should be _____

Excessive reverberation is caused due to ______