What is the initial phase at the origin for the wave y(x, t) = 3.0 sin(36t + 0.018x + π/4)? - OSCILLATIONS AND WAVES Quiz | GKFix.in

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Question

What is the initial phase at the origin for the wave y(x, t) = 3.0 sin(36t + 0.018x + π/4)?

A. 0
B. π/2
C. π
D. π/4