Sound and its Properties

Things to remember

• The velocity of sound is directly proportional to square root of the absolute temperature of the gas.
• The velocity of sound in gas is inversely proportional to the square root of the density of the gas.
• Sound travels faster in moist air than in dry air as the velocity of sound in gas is inversely varies inversely to square root of density of the gas.
• Sound transmits from one place to another in the form of a longitudinal wave.