What is φ in physics waves?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
φ (phi) represents the phase angle or phase constant in wave equations. It describes the wave's position in its cycle at time t = 0 and position x = 0. The general wave equation is y = A sin(kx - ωt + φ), where φ determines the initial displacement. Phase is measured in radians or degrees and is crucial for understanding wave interference, superposition, and synchronization. Two waves with different phases can interfere constructively or destructively depending on their phase difference.
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