Question: A wave is represented by 1 = 10cos (5x + 25t), where x is measured in metres and t in seconds. Show that this represents

A wave is represented by Ψ1 = 10cos (5x + 25t), where x is measured in metres and t in seconds. Show that this represents a travelling wave and deduce its wavelength, frequency, speed and direction of travel. Ψ2 = 10cos (5x + 25t), interferes with the first wave. Deduce the amplitude and phase of the resultant wave.

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