Question

Prove that intensity of sound increases when density increases

Answer 1

The speed of sound depends on the elasticity and density of the medium through which it is traveling. In general, sound travels faster in liquids than in gases and faster in solids than in liquids. The greater the elasticity and the lower the density, the faster sound travels in a medium. The mathematical relationship is speed = (elasticity/density).

Answer 2

the speed of sound increases with decrease in density of air
the presence of water vapour in the air reduces the density of air that is density of moist air< density of dry air
therefore, velocity of sound in moist air> velocity of sound in dry air.