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Wave Equation

Which of thes...

Question

Which of these is a wave/pulse equation?

y = A e^{- (a x + b t)^{2}}

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y = A s i n (a x - b t^{2})

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y = A s i n (a x + b t)

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y = (a x + b t)^{3}

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Solution

The correct option is D $y = (a x + b t)^{3}$
Any wave/pulse equation is of the form f(ax + bt). So, only (a), (c) and (d) are of that form!

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