The equation of a transverse wave travelling along a string is y ( x , t ) = 4.0 sin [ 20 × 1 0 − 3 x + 600 t ] mm , where x is in mm and t is in second. The velocity of the wave is :

Question

TestHub · Accepted Answer

​ k = 20 × 1 0 − 3 mm − 1 = 20 m − 1 w = 600 s − 1 v = k W ​ = 20 600 ​ = 30 m / s ​ and x & t carry same sign Therefore v = − 30 m / s

Physics - Sound Wave Question with Solution | TestHub

Options:

Doubts & Discussion