Sound WavesHard
Question
The equation of a wave traveling along the positive x-axis, as shown in figure at t = 0 is given by : -
Options
A.sin 
B.sin 
C.sin 
D.sin 
Solution
y = sin (ωt - kx + φ)
v = ω cos (ωt - kx + φ)
at t = 0, x = 0, y = -0.5, v > 0 ⇒ φ = -
∴ y = sin
v = ω cos (ωt - kx + φ)
at t = 0, x = 0, y = -0.5, v > 0 ⇒ φ = -
∴ y = sin
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