A guitar string is fixed at both ends.If you tighten it to increase its tension
A) the frequencies of its vibrational modes will increase but its wavelengths will not be affected.
B) the wavelength increases but the frequency is not affected.
C) both the frequency and the wavelength increase.

Question

Quizplus · Accepted Answer

When you tighten a guitar string, the tension in the string increases. This causes the speed of wave propagation in the string to increase. The frequency of the string's vibrational modes is directly proportional to the speed of wave propagation and inversely proportional to the wavelength of the wave. Therefore, increasing the tension will increase the frequency of the string's vibrational modes but will not affect their wavelengths.

A Guitar String Is Fixed at Both Ends