The fundamental frequency of A above middle C on the piano is 440 Hz. This is the tenor high A, but a convenient note in the mid-range of women's voices. When we calculate the wavelength, we find that it is:
A)much shorter than the length of either a man's or woman's lips.
B)shorter than the length of a man's lips, but about the length of a woman's lips.
C)longer than a woman's lips, but about the length of a man's lips.
D)much longer than the length of either a man's or a woman's lips.
E)about the same length as either a man's or woman's lips.

Question

Quizplus · Accepted Answer

The wavelength of a 440 Hz sound wave in air is much longer than the length of human lips, as sound travels at approximately 343 meters per second in air, resulting in a wavelength of about 0.78 meters (780 mm), which is much longer than typical lip lengths.

The Fundamental Frequency of a Above Middle C on the Piano