# NEET Physics Wave Optics Questions Solved

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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 $\frac{\pi }{2}$

(4) ${y}_{1}=a\mathrm{sin}\omega \text{\hspace{0.17em}}t,\text{\hspace{0.17em}}{y}_{2}=a\mathrm{cos}\omega \text{\hspace{0.17em}}t=a\mathrm{sin}\left(\omega \text{\hspace{0.17em}}t+\frac{\pi }{2}\right)$

Difficulty Level:

• 11%
• 14%
• 35%
• 42%
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