Do airplanes reflect light

Answer 1

In the sense that any shiny surface reflects light, yes. Of course, all airplanes have varying numbers of shiny surfaces, depending on whether they are painted, what color they are painted, whether the aluminum is polished, etc. Also, the position of the Sun and the angle of the surface relative to the source of light (usually the Sun) affects the degree and amount of light reflected. But all in all, the answer is yes.