A sound wave has a wavelength of λ. What is the minimum possible distance between two points with a phase difference of 90˚?
Correct answer: D. λ/4
- A. λ/2
- B. 3λ/2
- C. 5λ/2
- D. λ/4
Explanation
Path difference = wavelength/2π x phase differenceΔx = λ/2π × π/2 = λ/4 hence Option D is the correct answer.
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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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