1.

The phase difference between two points separated by 0.8 m in a wave of frequency 120 Hz is \[{{90}^{o}}\]. Then the velocity of wave will be                                   [MH CET 1999]

A.            192 m/s                                  
B.            360 m/s
C.            710 m/s                                  
D.            384 m/s
Answer» E.


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