Universal Wave Equation

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Presentation transcript:

Universal Wave Equation

Wave Speed We can use what we know to determine how fast a wave is moving. What is the formula for velocity? velocity = distance / time What distance do we know about a wave wavelength and what time do we know period

Wave Speed so if we plug these in we get velocity = length of pulse / time for pulse to move pass a fixed point v =  / T we will use the symbol  to represent wavelength

Wave Speed v =  / T but what does T equal so we can also write T = 1 / f so we can also write v = f  velocity = frequency * wavelength This is known as the wave equation. examples