waves

Question: The following equations represent progressive transverse waves <br>${{Z}_{1}}=A\cos (\omega \,t-kx)$<br> ${{Z}_{2}}=A\cos (\omega \,t+kx)$<br> ${{Z}_{3}}=A\cos (\omega \,t+ky)$ and<br> ${{Z}_{4}}=A\cos (2\omega \,t-2ky)$.<br> A stationary wave will be formed by superposing



1) ${{Z}_{1}}$ and ${{Z}_{2}}$
2) ${{Z}_{1}}$ and ${{Z}_{4}}$
3) ${{Z}_{2}}$ and ${{Z}_{3}}$
4) ${{Z}_{3}}$ and ${{Z}_{4}}$
Solution: Explanation: No Explanation
Stationary Waves

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