The equation of a travelling wave is given by \[y=0.5\sin (20x-400t)\] – McqOptions

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1.	The equation of a travelling wave is given by \[y=0.5\sin (20x-400t)\] where x and y are in meter and t is in second. The velocity of the wave is [UPSEAT 2004]
A.	10 m/s
B.	20 m/s
C.	200 m/s
D.	400 m/s
Answer» C. 200 m/s

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