# NEET Physics Wave Optics Questions Solved

Two waves are represented by the equations ${y}_{1}=a\mathrm{sin}\omega t$ and ${y}_{2}=a\mathrm{cos}\omega t.$ The first wave

(1) Leads the second by π

(2) Lags the second by π

(3) Leads the second by $\frac{\pi }{2}$

(4) Lags the second by $\frac{\pi }{2}$

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