Копия Refraction and internal reflection of light... simply

[color=#c51414][url=http://mfcosmos.com/] MATHS AND PHYSICS... WORLD[/url][/color][br][color=#1551b5]...simply: the path of light... just move the purple point.[/color]
– Rodion, Dimitris Mirogiannis

Information: Копия Refraction and internal reflection of light... simply