On reflection from a rigid wall if an incident wave in a string is represented by "y(x, t) = A sin (kx – ωt)," then the amplitude of the stationary wave formed is ____________.

On reflection from a rigid wall if an incident wave in a string is rep

1.	On reflection from a rigid wall if an incident wave in a string is represented by "y(x, t) = A sin (kx – ωt)," then the amplitude of the stationary wave formed is ____________.
A.	A sin(kx)
B.	A/2 sin(kx)
C.	2A sin(kx)
D.	2A sin2(kx)
Answer» D. 2A sin2(kx)