Reference no: EM1350612
Q. We know that when we pluck a string on an instrument the resulting sound wave travels through the air at a speed of (about) 344 m/s. But the wave moving on the STRING itself doesn't have to travel at 344 m/s. Let's consider some of the things that affect the velocity of a standing wave on a string: decide whether each of the following statements are T-True, or F-False. (If the first is T and the rest are F, enter TFFFF)
A) Given that waves travel on a guitar string with speed less than the speed of sound in air, and that a guitar string vibrates with frequency f: (T or F) the fundamental frequency of sound waves produced by this guitar will be equal to f.
B) The velocity of the wave traveling on a string is higher if you increase the length of the string (keeping the type of string, and the tension of the string, unchanged)
C) The velocity of a wave traveling on a violin string is decreased if you exchange the string for one this is less dense (keeping the length and tension unchanged.)
D) The velocity of the wave traveling on a string is higher if you pluck the string with a slightly larger sideways force
E) Given that waves travel on a guitar string with speed less than the speed of sound in air, and that a guitar string vibrates with a wavelength lambda: (T or F) the resulting sound wave produced in the air will have a wavelength the same as lambda.
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