the displacement y of a particle in a medium can be expressed as y = 10^(-6) sin (100 t + 20 x + (pi)/(4) )m where t is in seconds and x in metre The speed of wave is :

the displacement y of a particle in a medium can be expressed as y = 1

1.	the displacement y of a particle in a medium can be expressed as y = 10^(-6) sin (100 t + 20 x + (pi)/(4) )m where t is in seconds and x in metre The speed of wave is :
Answer» 2000 m/s 50 m/s 20 m/s 5 m/s Solution :`y = 10^(-6) SIN (100 t + 20 X + pi//4).` comparing it with standard form y = r sin `(omega t + kx + phi ) ` `omega = 100 s^(-1) and k = 20 ` `therefore v = (omega)/(k) = 5 ms^(-1)` correct CHOICE is (d).

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the displacement y of a particle in a medium can be expressed as y = 10^(-6) sin (100 t + 20 x + (pi)/(4) )m where t is in seconds and x in metre The speed of wave is :

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