For stringed instruments, frequency is given by:
Where F is the tension force on the string, L is the length of the string, and m is the linear mass density, also referred to as mass per unit length.
In a stringed musical instrument, the sound frequency of a particular string can be increased by
A. lengthening the string.
B. loosening the string.
C. tightening the string.
D. increasing the string's thickness.