The diagram represents two plane mirrors set at $90^{\circ}$ to one another. A beam of light falls on one mirror. It then reflects from both mirrors before arriving at a screen. At which labelled point does the ray strike the screen?
- AA
- BB
- CC
- DD
Physics 0625 · IGCSE · Light
The diagram represents two plane mirrors set at $90^{\circ}$ to one another. A beam of light falls on one mirror. It then reflects from both mirrors before arriving at a screen. At which labelled point does the ray strike the screen?