The locus of all points in a medium having the same phase of vibration is called____________________?
Correct answer: D. wave front
- A. crest
- B. trough
- C. wavelength
- D. wave front
Explanation
A wavefront is the locus of points in a medium that are vibrating in the same phase at a given instant. A crest and trough are only particular parts of a wave, while wavelength is a distance, not a set of points. Students may choose c by confusing a wave's spatial period with a wavefront.
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About Progressive Waves
Progressive waves transfer energy through a medium or space while particles oscillate about their equilibrium positions. The work includes amplitude, wavelength, frequency, period, phase difference, wave speed and the progressive wave equation, while distinguishing travelling waves from stationary waves, where the pattern has fixed nodes and antinodes.
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