A tavelling harmonic wave is represented by the equation ` y(x,t)=10^(-3)` sin (50t+2x), where x and Y are in meter and t is in seconds . Which of the following is a correct statement about the wave?
A
the wave is propagating along the negative x-axis with sped `25ms^(-1)`
B
the wave is propagating along the postitive x-axis with speed `100ms^(-1)`
C
the wave is propagating along the postive x-axis with speed `25ms^(-1)`
D
the wave is propagating along the nagative x-axis with speed `100ms^(-1)`
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