The number of loops in the standing waves is directly dependent on:
Correct answer: B. Frequency
- A. Wavelength
- B. Frequency
- C. Velocity
- D. Speed
Explanation
The correct answer is Frequency. The number of loops in a standing wave is directly related to its frequency, as frequency determines how many complete wave cycles fit into a given length. Wavelength does affect the spacing of nodes and antinodes, but the count of loops is a function of frequency. Velocity and speed describe wave propagation characteristics but do not determine the number of loops in the standing wave.
This question appeared on the ETEA MDCAT 2016 paper, which you can sit online with every answer explained.
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About Stationary Waves
Stationary waves form when two waves of the same frequency and amplitude travel in opposite directions and interfere. The topic covers nodes, antinodes, wavelength, phase, resonance, and the allowed frequencies on strings and in air columns. Unlike progressive waves, stationary waves do not transfer energy from one point to another.
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