Reflection of a Wave on a Wall: Amplitude Calculation

[Lynden L]

Homework Statement

A wave with the amplitude 4 cm travels along a rope that is fixed to a wall. The wave reflects from the wall. What is the amplitude of the reflected wave?

Homework Equations

I know it's something with light, could you explian in more detail?

The Attempt at a Solution

 

[gneill]

Why don't you develop and explain your thoughts on the matter and then perhaps we can comment constructively.