Question
What beat frequencies will be present: (a) If the musical notes A and C are played together (frequencies of 220 and 264 Hz)? (b) If D and F are played together (frequencies of 297 and 352 Hz)? (c) If all four are played together?
1. $44 \textrm{ Hz}$
2. $55 \textrm{ Hz}$
3. $f_{AC} = 44 \textrm{ Hz}$, $f_{AD} = 77 \textrm{ Hz}$, $f_{AF} = 132 \textrm{ Hz}$, $f_{CD} = 33 \textrm{ Hz}$, $f_{CF} = 88 \textrm{ Hz}$, $f_{DF} = 55 \textrm{ Hz}$
Solution Video