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## QuestionMathsClass 11

A travelling harmonic wave is represented by the equation $$y\left(x,t\right)= {10}^{-3}sin\left(50\;t+2x\right)$$, where x and y are in meter and t is in seconds. Which of the following is a correct statement about the wave?
The wave is propagating along the
a.negative x-axis with speed 25$${ms}^{-1}$$
b.The wave is propagating along the positive x-axis with speed 25$${ms}^{-1}$$
c.The wave is propagating along the positive x-axis with speed 100$${ms}^{-1}$$
d.The wave is propagating along the negative x-axis with speed 100$${ms}^{-1}$$

a
4.6
4.6