A) 0.5
B) 1
C) 2
D) 4
Correct Answer: A
Solution :
In a wave equation, x and t must be related in the form \[(x-v\,t)\]. We rewrite the given equations \[y=\frac{1}{1+{{(x-v\,t)}^{2}}}\] For \[t=0,\] this becomes \[y=\frac{1}{(1+{{x}^{2}})}\], as given For \[t=2,\] this becomes \[y=\frac{1}{[1+{{(x-2v)}^{2}}]}=\frac{1}{[1+{{(x-1)}^{2}}]}\] Þ \[2v=1\] or \[v=0.5m/s\].You need to login to perform this action.
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