- #1

- 622

- 32

I am using r and t to denote the amplitude reflection and transmission coefficients and R and T to denote the power reflection and transmission coefficients.

1. If r = -1 this is total reflection which leads to standing waves. But if the reflected wave has an equal but opposite amplitude why don't the incident and reflected wave cancel at all points leading to zero displacement everywhere ?

2. If r = 1 this is again total reflection but what happens in this case to the overall wave ?

3. When r = 1 , t = 2 but zero power is transmitted ie. T = 0. How is this explained ?

Thanks