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Writer's picturekeshprad

PhysicsBowl 2017 Q7


7) This question asks us to find the figure that best represents a one-meter section of the string. Using the general wave equation, we can find the wavelength of the described wave.

Where v is velocity, f is frequency, and λ is wavelength

The question specifies that this is a sine wave, so if we draw one period of a sine graph, the wavelength will be two meters. Thus, half a period of the sine wave is a one-meter section of the string.

Answer: B

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