Standing waves on strings and Standing waves in air columns The speed of sound...

Standing waves on strings and Standing waves in air columns

The speed of sound can be measured using the apparatus shown in Figure P20.63. A 440-Hz tuning fork vibrating above a tube partially filled with water initiates sound waves in the tube. The air inside the tube vibrates at the same frequency as the tuning fork when the water in the tube is lowered 0.20 m and 0.60 m from the top of the tube. Use this information to determine the speed of sound in air.