The middle C hammer of a piano hits two strings, producing beats of frequency 1.50 Hz. One of the strings is tuned to 260.00 Hz. What frequencies could the other string have?
A piano hammer hits three strings that emit frequencies of 127.8, 128.1, and 128.3 Hz.
What beat frequency is produced by the 128.3 Hz and 128.1 Hz notes?
What beat frequency is produced by the 127.8 Hz and 128.3 Hz notes?
What beat frequency is produced by the 128.1 Hz and 127.8 Hz notes?