1.

The equation of a wave is represented by \[y={{10}^{-4}}\sin \,\left[ 100\,t-\frac{x}{10} \right].\] The velocity of the wave will be                                                                                        [CBSE PMT 2001]

A.            100 m/s                                  
B.            250 m/s
C.            750 m/s                                  
D.            1000 m/s
Answer» E.


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