Which of the following equations represents a wave
AIPMT 1994, Medium
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(d) $y = A\sin (at - bx + c)$ represents equation of simple harmonic progressive wave as it describes displacement of any particle $(x)$ at any time $(t)$.
or It represents a wave because it satisfies wave equation $\frac{{{\partial ^2}y}}{{\partial {t^2}}} = {v^2}\frac{{{\partial ^2}y}}{{\partial {x^2}}}$.
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