Question

How many plane mirror strips are there in a kaleidoscope? How are they arranged?

Answer 1

There are three plane mirror strips in the kaleidoscope. They are inclined at ${60}^{\circ }$ to one another forming a hollow prism. It is based on the principle of multiple reflections. It consists of three plane mirror strips arranged at ${60}^{\circ }$ to each other in a tube (hard cardboard tube).