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Question
Explain why strings of different thicknesses are provided on a stringed instrument.
[Hint: Natural frequency of vibration of a stretched string is inversely proportional to the radius (or thickness) of string so notes of different frequencies can be produces by vibrating different strings.]
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Solution
The stringed instruments are provided with a number of different thicknesses under different tensions.
The tension can also be changed by twisting the pegs on a string.
The frequency of principal note can be increased by increasing the tension on the string or by using the string of less thickness.
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