A sound wave of frequency 660 Hz incidents normally on a perfectly reflecting surface. If the speed of sound in air is `330 m s^(-1)`, what is the time taken by a particle in the medium to complete one vibration? Determine the wave length of the wave.

Explanation

Frequency of the wave (n) = 660 Hz Speed of the sound wave (V) = 330 m `s^(-1)`
` therefore ` Wavelength `( lamda ) =(V )/( n ) = (330)/(660 ) = 1/2 t `
Time period,` T= (1)/(f) = (1)/(660 ) s`