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A particularly beautiful note reaching your ear from a rare Stradivarius violin has a wavelength of 39.1 cm. The room is slightly warm, so the speed of sound is 344 m/s. If the string’s linear density is 0.600 g/m and the tension is 150 N, how long is the vibrating section of the violin string?

Short Answer

Expert verified

The length of the string is 0.28 m

Step by step solution

01

Write the given information 

Wavelength of the wave, λ = 39.1 cm = 0.391 m
The speed of sound, v = 344 m/s
The linear density of the string, µ = 0.600 g/m = 0.600 x 10-3 kg/m
Tension in the string, T= 150 N

02

 Step 2: To determine the length of the string

The frequency of the wave is given by
f=vλf=3440.391f=879.7Hz

The expression for the fundamental frequency of the string wave is given by
f=12LTµ879.7=12L1500.6x10-3879.7=12L5x102L=250879.7L=0.28m

Thus, the length of the string is 0.28 m

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Most popular questions from this chapter

|| The three identical loudspeakers

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