waves

Question: Two waves are given by ${{y}_{1}}=a\sin (\omega t-kx)$ and ${{y}_{2}}=a\cos (\omega \,t-kx)$. The phase difference between the two waves is



1) $\frac{\pi }{4}$
2) $\pi$
3) $\frac{\pi }{8}$
4) $\frac{\pi }{2}$
Solution: Explanation: No Explanation
Progressive Waves

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