JEE MAIN - Physics (2021 - 24th February Evening Shift - No. 12)
Which of the following equations represents a travelling wave?
y = Aexcos($$\omega$$t $$-$$ $$\theta$$)
y = Ae$$-$$x2(vt + $$\theta$$)
y = A sin (15x $$-$$ 2t)
y = A sinx cos$$\omega$$t
Explanation
Y = F(x, t)
For travelling wave y should be linear function of x and t and they must exist as (x $$\pm$$ vt)
Y = A sin (15x $$-$$ 2t) $$ \to $$ linear function in x and t.
For travelling wave y should be linear function of x and t and they must exist as (x $$\pm$$ vt)
Y = A sin (15x $$-$$ 2t) $$ \to $$ linear function in x and t.
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