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Unformatted text preview: A. The frequency increases B. The frequency decreases C. The frequency does not change. Answer A: The frequency will increase with tension because v=(T/m) 1/2 , and f=v/l 4. A musical interval of an octave corresponds to a factor of 2 in frequency. By what factor must the tension in a guitar string be increased to raise its pitch one octave. A. By a factor of 2 B. By a factor of 4 C. By a factor of 8 Answer B: because frequency is proportional to square root of tension, raising it by a factor of 4 will raise the frequency by a factor of 2., 5. Which of the following represents a wave function A. y(x,t) =cos( vxt ) B. y(x,t) =log( xvt ) C. y(x,t) =exp(a x+bt ) Answer B. Only this function has correct coordinatetime dependence f(xvt) 6. Two pulses travel to each other as shown. What is the resulting pulse after one second? A B C 1 m/s 1 m/s 1m 1m 1m...
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This note was uploaded on 01/10/2010 for the course PHY na taught by Professor Richardscalettar during the Fall '09 term at UC Davis.
 Fall '09
 RichardScalettar

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