Which one is the correct relation for the fundamental frequency of open and closed pipes:
Correct answer: A. fopen = 2fclosed
- A. fopen = 2fclosed
- B. fclosed = 2fopen
- C. fopen = fclosed
- D. fopen = 1/fclosed
Explanation
For same length L: open pipe fopen = v/2L; closed pipe fclosed = v/4L. Therefore fopen = 2 fclosed. Thus, option A is correct.
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About Waves
Progressive waves transfer energy through oscillations, with wavelength, frequency, amplitude and wave speed related by v = fλ; sound speed depends on the medium. Superposition produces interference and stationary waves in strings and organ pipes, while simple harmonic motion describes the oscillation itself and must be distinguished from wave propagation.
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