JSAP Spring / Autumn Meeting

A learning program of virtual images is proposed. A marble is used instead of a light source and sticks represent light paths in demonstration experiment. Their virtual images appearing in a mirror help students understand the geometric positions of the real and virtual ones. Increasing the number of the mirrors leads to that of reflection and the phenomenon becomes more complicated. An opportunity to observe the phenomena in the step-by-step increasing-mirrors demonstration can be supplied to understand the law of reflection and the positions of images. The method to utilize the demonstration experiment will be discussed in the presentation.