- A narrow beam of light from a slide projector is dispersed by a prism into a rainbow.
- Can be displayed on a white board or screen, room lights must be dimmed.
(Point projector toward front
wall)
(Position rear face of prism in front of projector lens)
(Can spread rainbow out by increasing the angle to the screen)
(Focus the image)
(Position rear face of prism in front of projector lens)
(Can spread rainbow out by increasing the angle to the screen)
(Focus the image)
