A traveling wave of the form y1 = 0.01 sin[100π t – (10 π/3) x] m is reflected off a rigid surface located at x = 3 m. The reflected wave undergoes a phase change ε. a. Write down the form of the reflected wave and calculate the value of ε b. Write down an expression for the resultant wave, and describe its motion c. At what instant is the resultant wave always zero?

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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.