'Harmonic waves' diaporamas de présentation

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Traveling Waves

Wave motion. Periodic waves: on a string, Sound and electromagnetic waves Waves in Three Dimensions. Intensity Waves encountering barriers: Reflection, Refraction and Difraction, The Doppler Effect Superposition, Interference Standing waves. Traveling Waves. INTRODUCTI0N. TRAVELING WAVES

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Traveling Waves

Wave motion. Periodic waves: on a string, Sound and electromagnetic waves Waves in Three Dimensions. Intensity Waves encountering barriers: Reflection, Refraction and Difraction, The Doppler Effect Superposition, Interference Standing waves. Traveling Waves. INTRODUCTI0N. TRAVELING WAVES

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Lecture 28, Dec. 8

Lecture 28, Dec. 8. Goals:. Chapter 20 Work with a few important characteristics of sound waves. (e.g., Doppler effect) Chapter 21 Recognize standing waves are the superposition of two traveling waves of same frequency Study the basic properties of standing waves

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1.4 Periodic Waves

1.4 Periodic Waves. Often have situations where wave repeats at regular intervals Electromagnetic wave in optical fibre Sound from a guitar string. These regularly repeating waves are known as periodic waves.

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At the Earth surface the radius of curvature of the wave front is 150,000,000 km,

A light bulb is a source of a spherical wave. If you are 5 ft away from the bulb and walk another 5 ft away the light intensity decreases by a factor of 2 2 = 4. At the Earth surface the radius of curvature of the wave front is 150,000,000 km,

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1.15 Linear superposition applied to two harmonic waves

1.15 Linear superposition applied to two harmonic waves. Can use the idea of linear superposition to understand Standing waves Beats in sound Interference effects in light Will consider two harmonic waves, y 1 (x,t) and y 2 (x,t) of equal amplitude A. y 1 (x,t) = Asin(k 1 x- w 1 t + ? 1 )

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Chapter 2 Wave motion August 20,22 Harmonic waves 2.1 One-dimensional waves

t = 0. x. 0. vt. t. x. 0. Chapter 2 Wave motion August 20,22 Harmonic waves 2.1 One-dimensional waves Wave : A disturbance of the medium, which propagates through the space, transporting energy and momentum.

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SINAMICS DCC Harmonic Wave Compensation V1.0

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Chapter 2 The Mathematics of Wave motion

Chapter 2 The Mathematics of Wave motion. 2.1 One-dimensional waves. The essential aspect of a propagating wave is that it is a self-sustaining disturbance of the medium through which it travels. For example, a pulse travels along a stretched string, as shown in Fig. 2.1 .

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Electromagnetic (EM) spectrum

Electromagnetic (EM) spectrum. non-ionizing radiation. ionizing radiation. 1 EHz 10 18. 1 Hz. 1 kHz 10 3. 1 MHz 10 6. 1 GHz 10 9. 1 THz 10 12. 1 PHz 10 15. 300 Mm. 300 km. 300 m. 0.3 m. 0.3 mm. 300 nm. 0.3 nm. electric power supply. cellular phone.

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PHY221 Ch23: Harmonic Waves and Wave Eqtn

PHY221 Ch23: Harmonic Waves and Wave Eqtn. Main Points: Travelling disturbances in a physical quantity Periodic (harmonic) waves Example Wave equation: example of wave on a string. PHY221 Ch23: Harmonic Waves and Wave Eqn. Main Points.

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Wave and Wave Motion

Wave and Wave Motion. Wave ??? ?????? ??? ?? ? ??? ?? ?? ?? ?? ??? ?? ??? ??? ??. ?? ?? ??? ?? ??? ??? ??. Examples: http://www.kettering.edu/~drussell/Demos/waves/wavemotion.html. Mathematical Foundation for the (traveling) wave formula

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