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Superposition, Stationary Waves and Beats
Physics · Chapter 23 · Unit 10: Oscillations and Waves
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- Principle of superposition; interference and dependence on relative phase (qualitative)
- Beats (qualitative); beat frequency equals the difference of frequencies
- Stationary waves: formation from two opposite progressive waves; y = 2y_m sin(kx) cos(omega t); nodes and antinodes; comparison with progressive waves
- Laws of vibration of a stretched string; fundamental frequency f0 = (1/2l) sqrt(T/m); sonometer
- Modes of vibration of strings and of closed and open organ pipes; harmonics, overtones and resonance with a tuning fork