We did not chat about the well (or equal) tempered scale on Monday. Be sure to bring information about it.
HW related to today's discussion of organ pipes:
Find out the difference between longitudinal and transverse waves. Which type of sound (in air)?
Play around with the applet from class:
http://www.physics.smu.edu/~olness/www/05fall1320/applet/pipe-waves.html
Note that the mathematics of organ pipes is exactly the same as that of guitar strings. The only difference is that there are anti-nodes on each end of an organ pipe. (On a guitar string, there are nodes on each end, since the string is fixed to the guitar neck at top and bottom).
With that in mind. Find the wavelength and frequencies of the first 3 harmonics in an organ pipe that is 50 cm long. Assume that the speed of sound is 340 m/s.
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