Which statement is false? 0 The speed of a sound wave through a medium increases with the frequency of the wave. 0 Beats occur when two sounds have nearly. but not exactly, the same frequency. They are also the result of interference. O For a sinusoidal traveling sound wave in onedimension the pressure variations AP from equilibrium pressure may be written as P(X,t} = aPmaxsinikx out + (p). 0 Sound levels Bare measured using a logarithmic scale. 0 The intensity I or energy per unit area of a sound wave that travels in three dimensions is inverse proportional to the square of the distance from the source. The third harmonic in a tube with one open end has a frequency of 985 Hz. What is the length of the tube in meter. if the speed of sound is 339 m/s? Enter a number with 2 digits behind the decimal point