waves

Question: Equation of a progressive wave is given by $y=4\sin \left\{ \pi \left( \frac{t}{5}-\frac{x}{9} \right)+\frac{\pi }{6} \right\}$ . Then which of the following is correct

1) $v=5\,m/\sec $

2) $\lambda =18\,m$

3) $a=0.04\,m$

4) $n=50\,Hz$

Solution:

Explanation: No Explanation

Progressive Waves

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