Question : Vibration of which among the following produces only odd harmonics?
Option 1: A vibrating rod fixed at two ends
Option 2: A vibrating string fixed at two ends
Option 3: An air column in a closed organ pipe
Option 4: An air column in an open organ pipe
Correct Answer: An air column in a closed organ pipe
Solution : The correct answer is An air column in a closed organ pipe.
Physics demonstrates that in the situation of an air column vibrating in a pipe closed at one end, the only harmonics present as overtones are odd. An antinode at the open end and a node at the closed end are the two boundary conditions that need to be satisfied in this scenario for the stationary waves in the air column.
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