A guitar string of length has a mass per unit length of and is under a tension of

PHYSICS · Multi-part · CBSE · Physics · Waves · Waves

Problem

A guitar string of length 0.65 m0.65\,\text{m} has a mass per unit length of 1.2×10−3 kg/m1.2\times10^{-3}\,\text{kg/m} and is under a tension of 180 N180\,\text{N}. Both ends of the string are rigidly fixed. After the string is plucked, standing waves form and the fundamental mode is produced. The sound generated by the vibrating string travels through the surrounding air at 343 m/s343\,\text{m/s}. (a) Calculate the speed of transverse waves on the string. (b) Determine the fundamental frequency of vibration of the string. (c) Calculate the wavelength of the sound wave in air that corresponds to this fundamental frequency.

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