PHY221 Ch23: Harmonic Waves and Wave Eqtn

1. Main Points: • Travelling disturbances in a physical quantity• Periodic (harmonic) waves

2. Example• Wave equation: example of wave on a string

PHY221 Ch23: Harmonic Waves and Wave Eqn1.

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1.1 Travelling waves (travelling disturbances in a physical quantity)

PHY221 Ch23: Harmonic Waves and Wave Eqtn1.

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1.2 Travelling waves that are also periodic:

PHY221 Ch23: Harmonic Waves and Wave Eqtn1.

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1.2 Example of travelling periodic waves: Harmonic waves

PHY221 Ch23: Harmonic Waves and Wave Eqtn2.

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2.1 Wave equation: example of wave on a string

PHY221 Ch23: Harmonic Waves and Wave Eqtn2.

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2.1 Wave equation: example of wave on a string

PHY221 Ch23: Harmonic Waves and Wave Eqtn2.

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2.1 Wave equation: example of wave on a string

PHY221 Ch23: Harmonic Waves and Wave Eqtn2.

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2.1 Wave equation: example of wave on a string