You are tuning a guitar by comparing the sound of the string with that of a standard tuning fork. You notice a beat frequency of 5 Hz when both sounds are present. As you tighten the guitar string, the beat frequency rises steadily to 8 Hz. To tune the string exactly to the tuning fork, which is what you will do?
A、 Loosen the string. ;
B、Continue to tighten the string.;
C、Impossible to determine for the given information. ;
D、Done nothing.
发布时间：2025-08-11 04:29:43
