6Hz
30 (or lower) to 15 000 (or higher)
11.3 beats
20Hz and 270Hz
The frequency of the piano note is either 1053 Hz or 1059 Hz. The beats indicate the difference in frequency between the tuning fork and the piano, so the difference in frequency would be 3 Hz. This means the piano frequency will be either 1056 + 3 = 1059 Hz or 1056 - 3 = 1053 Hz.
You will hear 4 beats per second. This is calculated by taking the difference between the two frequencies (520 - 516 = 4) to determine the frequency of the beating pattern.
The beat frequency would be 6 Hz, which is the difference between the two overlapping frequencies (256 Hz - 250 Hz). This is the rate at which the intensity of the sound will oscillate, creating a pulsating effect.
The difference in frequency between the two notes results in the 4 beats per second. If one note is 420 Hz, a possible frequency for the other note could be either 416 Hz or 424 Hz, as these values would result in a 4 Hz difference, creating the perceived beats.
Could be 259 Hz.Could be 267 Hz.
The beats are the sum and difference of the components ... (A + B) and (A - B).If something really non-linear is also going on, you also get (2A - B), but we'llleave that alone for right now.That pair of forks produces beats at 2 Hz and 990Hz .
Number of beats heard in one second will be got by the difference between the parent frequencies. Hope you have given wrong data for parent frequencies. The first one has to be 220 Hz and the other is 226 Hz. Hence 6 beats will be heard in one second. If you say 20 is the right one then difference will be 206. If 206 beats get produced in one second it will not be named as beat at all. Moreover our hearing could not recognize this as beating at all. So better correct the given data.
The number of beats that we hear per second is the beat frequency. It is equal to the difference in the frequencies of the two notes. In this case: Beat frequency = 882 Hz - 880 Hz = 2 Hz. This means that we will hear the sound getting louder and softer 2 times per second.