1.

The wave equation is \[y=0.30\sin (314t-1.57x)\] where t, x and y are in second, meter and centimeter respectively. The speed of the wave is [CPMT 1997; AFMC 1999; CPMT 2001]

A.            100 m/s                                  
B.            200 m/s
C.            300 m/s                                  
D.            400 m/s
Answer» C.            300 m/s                                  


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