waves

Related Questions

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• Out of the given four waves (1), (2), (3) and (4). <br>$y=a\sin (kx+\omega t)$ ......(1) <br>$y=a\sin (\omega t-kx)$ ......(2) <br>$y=a\cos (kx+\omega t)$ ......(3) <br>$y=a\cos (\omega t-kx)$ ......(4) <br>emitted by four different sources ${{S}_{1}},\,{{S}_{2}},\,{{S}_{3}}$ and ${{S}_{4}}$ respectively, interference phenomena would be observed in space under appropriate conditions when

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