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Two or more waves traveling in the same medium travel independently and can pass through each other. In regions where they overlap, the disturbances add like vectors. y(x,t) = A sin(kx - ωt) + A sin(kx + ωt) = 2A sin(kx)cos(ωt).
What is the equation of standing wave?
Key Equations
| Wave speed | v=λT=λf |
|---|---|
| Power in a wave for one wavelength | Pave=EλT=12μA2ω2λT=12μA2ω2v |
| Intensity | I=PA |
| Intensity for a spherical wave | I=P4πr2 |
| Equation of a standing wave | y(x,t)=[2Asin(kx)]cos(ωt) |
What is standing waves in physics?
Standing wave, also called stationary wave, combination of two waves moving in opposite directions, each having the same amplitude and frequency. The phenomenon is the result of interference; that is, when waves are superimposed, their energies are either added together or canceled out.
