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Understanding Wave Measurement Essentials

Explore the definitions of key wave measurement concepts like amplitude, wavelength, period, and frequency, along with wave anatomy and calculations. Learn about wave behaviors such as reflection, diffraction, refraction, and interference. Discover how to calculate wave properties and phase differences in radians and degrees.

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Understanding Wave Measurement Essentials

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  1. Essentials of measuring waves Waves12.02

  2. Write a definition for each(no textbook ) • Amplitude • Wavelength • Period • Frequency Maximum displacement of a vibrating particle Distance between two particles with same displacement and velocity Time for one complete wave to pass a point No. of complete waves passing a point each second

  3. Wave anatomy Peak-to-peak amplitude Wavelength RMS amplitude (Peak/√2) Crest or peak Amplitude Equilibrium Trough or peak Amplitude

  4. Draw examples of: • Reflection • Diffraction • Refraction • Interference

  5. Wave calculations • Period = 1/f • (Time for one cycle = 1/frequency in Hz) • Speed = dist/time • So, wave speed (c) = wavelength (λ)/period (1/f) • So, c = λ/(1/f) • So, c = fλ

  6. Phase difference • Radians (θ) • Relationship between radius (r) and arc length (s) • θ = s/r • So radians in a complete circle = 2πr/r • r/r cancels, so radians in a complete circle = 2π • So, phase difference = 2πd/λ • Convert to degrees: • Deg = rad.180/ π

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