Purpose –To observe the following phenomena about light: light rays reflecting off a mirror and refracting through lenses diff. colored paper under diff. colored lights the spectrograph created by different lights the reflection of a laser the combining of colored lights Visible Light

Draw the five light rays before and after reflecting, or going through, the following 4 objects one at a time. concave lens convex lens concave mirror convex mirror ? Station A ? _________Label what you are using under the diagram_______ Draw the object

Color/show the color of six different colors of paper under a 3 different colored lights. paper/lightredyellowgreen white yellow red blue black green Station B Colored Paper Appearance Under a Red, Blue, and Green Light

Draw a prediction FIRST how you think the mirrors need to be arranged to hit the bulls eye with the laser OFF. Draw the actual diagram how the mirrors were arranged in order to hit the bulls eye with the laser ON. Prediction Laser OFF Actual with Laser ON Station C

Color the spectrographs of 5 different lights as seen through the spectrometers. –blue –LED –fluorescent (hall way) –natural light (outside, but not directly at the sun) Station D R O Y G B I V

LED Blue Fluorescent (hall way) Natural (outside)

Place the blue light on top of the red and green. Set the lens in front of the lights Slowly move the lens forward or backwards until you see the three light colors overlap on the white paper Station E 3 flashlights lens draw the colors when the 3 lights combine