| A | B |
| Colors of visible spectrum from shortest to longest wavelenth | violet, indigo, blue, green, yellow, orange, red |
| Colors in the spectrum from shortest to longest frequency | Red, orange, yellow, green, yellow, blue, indigo, violet |
| A luminous body _______ light | emits |
| An illuminated body ______ light | reflects |
| luminous flux (lum) | rate at which light is emitted from a source |
| luminous intensity (cd) | luminous flux that falls on one square meter of a sphere one meter in radius |
| (4 Pi) lumens | 1 candela |
| transparent | Light can go through and you can see through |
| translucent | Light can go through but hard to see |
| opaque | transmits no light and you can not see through at all |
| white light consist of what colors | All the colors of the spectrum or a color and its complementary color |
| Primary colors | Red green and blue ( when mixed they make white) |
| Secondary colors | Yellow(R/G), Cyan(G/B), Magenta(R/B) - MIXTURE OF 2 PRIMARY COLORS |
| Complementary colors | MIXTURE OF A PRIMARY AND SECONDARY COLOR TO PRODUCE WHITE LIGHT, (B/Y), (G/M), (R/C) |
| Pigments | absorb certain colors and transmit or reflect others |
| Primary pigment | ABSORBS ONE COLOR -- YELLOW absorbs blue reflects red and green, MAGENTA absorbs green and refelects red and blue, CYAN absorbs red and reflects green and blue |
| Secondary pigment | ABSORBS TWO COLORS -- RED absorbs green and blue, BLUE abosrbs red and green, GREEN absobs red and blue |
| Polarizers | Allow light to pass in only one direction |
| Thin films create a spectrum of colors due to | interference of light reflected from the front and back surfaces of the film |
| Secondary pigments are ____________ colors | primary |