Question

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

Where x and y are measured in metres and t in second. The speed of the wave is ………

(a) 150 ms^-1 

(b) 300 ms^-1 

(c) 450 ms^-1 

(d) 600 ms^-1

Answer 1

(a) 150 ms^-1

From the standard equation of wave,