**Question:**

**A travelling harmonic wave is represented by the equation $y(x, \mathrm{t})=10^{-3} \sin (50 \mathrm{t}+2 x)$, where $x$ and $y$ are in meter and $t$ is in seconds. Which of the following is a correct statement about the wave?**

The wave is propagating along the negative $x$-axis with speed $25 \mathrm{~ms}^{-1}$.

The wave is propagating along the positive $x$-axis with speed $100 \mathrm{~ms}^{-1}$.

The wave is propagating along the positive $x$-axis with speed $25 \mathrm{~ms}^{-1}$.

The wave is propagating along the negative $x$-axis with speed $100 \mathrm{~ms}^{-1}$.

Question of from chapter.

JEE Main Previous Year 12 Jan. 2019 I

Correct Option: 1

**Solution:**

### Related Questions

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\begin{aligned}

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&y_{2}=0.05 \cos (0.46 \pi x-92 \pi t)

\end{aligned}

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This represents a: