Two speakers that are 1.2 meters apart each play identical sound waves. A student who is 4.8 meters from the speakers hears two quiet spots that are 1.9 meters apart. In between the two quiet spots, she can hear the sound from the speakers. How long are the waves produced by the speakers? O cannot be determined without the frequency of the waves O none of these O 7.6 m O 0.48 m 11 m

Two speakers that are 1.2 meters apart each play identical sound waves. A student who is 4.8 meters from the speakers hears two quiet spots that are 1.9 meters apart. In between the two quiet spots, she can hear the sound from the speakers. How long are the waves produced by the speakers? O cannot be determined without the frequency of the waves O none of these O 7.6 m O 0.48 m 11 m