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# 35 - MasteringPhysics Assignment Print View...

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MasteringPhysics: Assignment Print View http://session.masteringphysics.com/myct/assignmentPrint?assig... 2 of 13 17/4/07 15:52 Part C How far to the left would the original sinusoidal wave have to be shifted to give a wave that would completely cancel the original? The variable in the picture denotes the wavelength of the wave. Express your answer in terms of . ANSWER: = Part D In talking about interference, particularly with light, you will most likely speak in terms of phase differences, as well as wavelength differences. In the mathematical description of a sine wave, the phase corresponds to the argument of the sine function. For example, in the function , the value of at a particular point is the phase of the wave at that point. Recall that in radians a full cycle (or a full circle) corresponds to radians. How many radians would the shift of half a wavelength from the previous part correspond to?
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