waves

Question: Two travelling waves ${{y}_{1}}=A\sin [k(x-c\,t)]$ and ${{y}_{2}}=A\sin [k(x+c\,t)]$ are superimposed on string. The distance between adjacent nodes is



1) $c\,t/\pi $
2) $c\,t/2\pi $
3) $\pi /2k$
4) $\pi /k$
Solution: Explanation: No Explanation
Stationary Waves

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