Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
Which one of the following represents a travelling wave? (1) \[y=A\sqrt{(x-vt)}\] (2) \[y=A\cos (ax+bt)\] (3) \[y=A\log (x-vt)\] (4) \[y=f({{x}^{2}}-v{{t}^{2}})\]A) 1, 2 and 3 are correct
B) 1 and 2 are correct
C) 2 and 4 are correct
D) 1 and 3 are correct
Correct Answer: A
Solution :
Travelling wave is of the form\[F(ax\pm bt)\].
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