PTS 77 Most Important Facts related to Sound

Most Important Facts related to Sound

✅ The speed of sound is different for different type of mediums. 

✅ The speed of these waves in the air is approximately 332 m/sec. 

✅ Sound is that form of energy which produces a hearing sensation.

✅ Sound travels in the form of waves. Medium (solid, liquid or gas) is necessary for their propagation.

✅ The speed remains unchanged with increase or decrease in pressure.

✅ Speed of sound depends upon the nature of the medium through which it propagates. Speed of sound varies in different mediums. Sound propagates faster than gas in a liquid. Sound speed is fastest in solids. Sound does not propagate in vacuum. Sound can travel faster in steel than in air.

✅ Speed of sound depends upon temperature. Increase in temperature results in increase in the speed of sound.

✅ The Speed of sound in humid air is more than that of dry air.