An organ pipe (one end open, one end closed) is producing its lowest pitch of 66 Hz (C-note) at 20 degree Celsius at which the speed of sound is 343 m/sec. 24. Find the length of the pipe. (1 m 3.28 ft) 25. If the temperature is 40 degree Celsius, find the new frequency of the pipe. 26. How would you adjust the length of the pipe so that is will produce 66 Hz at 40 degree C?

An organ pipe (one end open, one end closed) is producing its lowest pitch of 66 Hz (C-note) at 20 degree Celsius at which the speed of sound is 343 m/sec. 24. Find the length of the pipe. (1 m 3.28 ft) 25. If the temperature is 40 degree Celsius, find the new frequency of the pipe. 26. How would you adjust the length of the pipe so that is will produce 66 Hz at 40 degree C?