A stationary wave is set up in a pipe of length L, which is is open from one end. There are three nodes. How many anti nodes are there in the stationary wave?
Correct answer: B. 3
- A. 2
- B. 3
- C. 4
- D. 6
Explanation
When organ pipe is closed at one end Number of nodes = number of antinodes Refer to the diagram antinodes and nodes. So the correct answer is option B=3.
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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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