The displacement y of a wave travelling in the x direction is given by y=(2 xx 10^(-3)) sin(300t - 2x + pi/4), where x and y are measured in metres and t in second. The speed of the wave is

The displacement y of a wave travelling in the x direction is given by

1.	The displacement y of a wave travelling in the x direction is given by y=(2 xx 10^(-3)) sin(300t - 2x + pi/4), where x and y are measured in metres and t in second. The speed of the wave is
Answer» `150 ms^(-1)` `300 ms^(-1)` `450 ms^(-1)` `600 ms^(-1)` Solution :`150 ms^(-1)` From the standard EQUATION of wave, `y = a sin (OMEGA t - k x + phi)` Here , `omega = 600` and `k = 2` So , SPEED of wave is ` v = (omega)/(k) = (600)/(2) , v = 150` m/s