- #1
Yoseph Santoso
- 19
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There is a multiple choices question about traveling wave in my book.
Based on the graphic, if T = 2s, the wave equation is ...
My answer :
ω = 2π/T = 2π/2 = π
k = 2π/λ = 2π/4 = 0,5π → in my country, we use comma (,) for point (.)
y = ±A sin (ωt - kx)
y = -0,5 sin (πt - 0,5πx)
y = -0,5 sin π(t - 0,5x)
but the answer on my book is B. Could we throw the negative anyway?
Based on the graphic, if T = 2s, the wave equation is ...
My answer :
ω = 2π/T = 2π/2 = π
k = 2π/λ = 2π/4 = 0,5π → in my country, we use comma (,) for point (.)
y = ±A sin (ωt - kx)
y = -0,5 sin (πt - 0,5πx)
y = -0,5 sin π(t - 0,5x)
but the answer on my book is B. Could we throw the negative anyway?
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