A piano tuner hears one beat every 2.0s when trying to adjust two strings, one of which is sounding 440 Hz. How far off in frequency is the other string?

Question

bobpursley · Answer

the difference in freq is 1/2 hz

henry2, · Answer

1beat/2s. = 0.5beats/s. = 0.5cycles/s. = 0.5 Hz.