Homework Help Forum: Physic

Posted by K. on Saturday, November 7, 2009 at 9:19pm.

A violin string has a standard length of 32.8 cm. It sounds the musical note A (440Hz) when played without fingering. How far from the end of the string should you place your finger to play the note C (523Hz)? answer should be in cm.

• Physic - drwls, Saturday, November 7, 2009 at 10:05pm

  You want the vibrating part of the stng to be 440/523 of the original length, to decrease the wavelngth by that factor. (The frequency will be higher by the inverse factor 523/440.) 440/523 x 32.8 = 27.6 cm. The finger should be moved 32.8 - 27.6 = 5.2 cm from the end of the string.

  
  

• Physic - K., Saturday, November 7, 2009 at 10:11pm

  you saved my life....thanks

  
  

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