If the phase constant φ is π/2 in y(x,t) = a sin(kx - ωt + φ), what is the initial displacement at x=0, t=0? - OSCILLATIONS AND WAVES Quiz | GKFix.in

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If the phase constant φ is π/2 in y(x,t) = a sin(kx - ωt + φ), what is the initial displacement at x=0, t=0?

A. 0
B. a/2
C. a
D. -a

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