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

In _________ system, some mechanical arrangement is adopted to provide enough ventilation to the room.

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

Sound travels faster in gases than in solids.

Excessive reverberation is caused due to ______

The intensity of sound depends on the ear of the listener.

The ____________ plays an important role in the comfort of persons affected by ventilation system.

Which of the following is not a characteristic of sound?