waves

Question: Equation of the progressive wave is given by : $y=a\sin \pi (40t-x)$ where $a$ and $x$ are in metre and $t$ in second. The velocity of the wave is

1) 80 m/s

2) 10 m/s

3) 40 m/s

4) 20 m/s

Solution:

Explanation: No Explanation

Progressive Waves

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