Consider the harmonic travelling wave What is its period? What is its frequency? v= What is its angular frequency? w What is its wavelength? = What is its angular wave number? k = What is its wave speed? c = m/s Assume the above harmonic wave is a solution of the motion of a string with tension T = 1 Newton. What is the string's density? p = kg/m What is its kinetic energy density? What is its kinetic energy over one wavelength? Ek What is its potential energy density? = What is its potential energy over one wavelength? Ev = IS s y(x, t) = 12 cos(3x - 12πt). m = s /m J/m J/m

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Stretched string

A stretched string is a wire which is made up of any metal that must have a larger length compared to its thickness. The ends of the wire are fixed, and when they oscillate or are plucked, it produces two reflected transverse waves of the same frequency and same amplitude. The waves or pulses are traveling in alternate directions and superimpose with one another. This waveform is named standing or stationary waves.