Suppose that the linear density of the A string on a violin is 8.20 10-4 kg/m. A wave on the string has a frequency of 410 Hz and a wavelength of 71 cm. What is the tension in the string?

T = 69.49 N

Explanation:

The relation between the tension and speed of a wave is:

(1)

Where:

Let's recall, that the speed of a wave is the wavelength times the frequency, so:

Now, we just need to solve the equation (1) for T and use the value of v we found before.

Therefore the tension of string is 69.49 N.

I hope it helps you!

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