Question

Beat frequency problem. Your ear simultaneously hears waves from different sources, so it can hear beats from the two speakers. In principle, the easiest way to measure the sound waves is to put a detector between the two speakers; however, in the experiment no detector is used to measure the wave field. Instead the voltages applied to the speakers are added electronically by the oscilloscope to simulate the true sound waves.

Answer 1

Completed question:Suppose one speaker is driven at 570 Hz and the other at 554 Hz. What is the beat frequency in Hz? The average frequency in Hz?

Answer:

Beat frequency= 16Hz

Average frequency = 562Hz

Explanation:

Beat frequency f = f2-f1

Where f2 is frequency of source with higher frequency

           f1 is frequency of source with lower frequency

          f1= 554Hz, f2= 570Hz

   beat frequency (f) = 570 -554

                                  = 16Hz

   Average frequency = $\frac{554+570}{2}$

                                    =$\frac{1124}{2}\\ =562Hz$