In class, we have discussed about a comer cube. The comer cube is a retroreflector which

reflects an incident beam back on itself regardless of incident direction. Show how this

comer cube reflects the incident beam back to itself regardless of incident direction. Hint:

Work for one directional retroreflector case then extend the idea into the corner cube case.

You don't need to use any analytical method to solve this question. Explanation of how

this works would be sufficient.