A progressive wave travelling along the positive x - direction is represented by y x , t = A s i n ( k x - ω t + ϕ ) . Its snapshot at t = 0 is given in the figure. For this wave, the phase ϕ is:

Question

A progressive wave travelling along the positive x - direction is represented by y x , t = A s i n ( k x - ω t + ϕ ) . Its snapshot at t = 0 is given in the figure. For this wave, the phase ϕ is:, π 2, 0, π, - π 2

MARKS App · Accepted Answer

y = A sin ( k x - ω t + ϕ ) at x = 0 , t = 0 , y = 0 and slope is negative ⇒ ϕ = π

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