Keith Ellis
More ideas from Keith
Trick to drawing ray diagrams for converging lens: There is one ray of light passing through the center of the lens. Always. 2 rays are enough to determine the position of image/object. The other ray of light ALWAYS passes through the focal point of the lens. Either the first focal point of the second focal point. If a ray passes through the focal point before passing through the lens, the refracted ray will be travelling parallel to principal axis. If a ray is parallel to principal axis...

Trick to drawing ray diagrams for converging lens: There is one ray of light passing through the center of the lens. 2 rays are enough to determine the

Download Hubble Ultra Deep Field 1920x1080 HD Wallpaper

Download Hubble Ultra Deep Field 1920x1080 HD Wallpaper