Which of the following is true about the speed of sound?
Speed of sound decreases from solid to gaseous state
Speed of sound is more in solids. Hence when sound travels from solids to liquids or gaseous medium, speed of sound decreases gradually. Sound travels at 343 m/s in air, it travels at 1,484 m/s in water (4.3 times as fast as in air) and at 5,120 m/s in iron (about 15 times as fast as in air). Temperature is the average kinetic energy of all particles of a body. When the temperature has increased the movement of particles increases and sound can be transferred easily.