Select the statement that correctly completes the description of phase difference.

phase difference describes

the difference in the phase angle between any two waves at any given position along the waves.

the shift between the positions of corresponding crests of two waves of the same frequency.

the difference in the frequencies of two waves at a given time.

the displacement of a wave particle from its undisturbed p

Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s.part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.