Which of the following equations represents a travelling wave ?
Select the correct option:
A
$y=A \sin (15 x-2 t)$
B
$y=A e^{-x^2}(v t+\theta)$
C
$y=A e^x \cos (\omega t-\theta)$
D
$y=A \sin x \cos \omega t$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
y = F(x, t)
For travelling wave y should be linear function of x and t and they must exist as (x ± vt) y = Asin (15x − 2t) → linear function in x and t
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