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Chapter 28
- By passing a narrow beam of sunlight through a triangular-shaped glass prism, Newton showed that sunlight is composed of a mixture of all the colors of the rainbow.
- Newton called this spread of colors a spectrum.
- White light is a combination of all the colors.
- Sunlight is an example of white light.
- Sunlight is an example of white light.
- White light is a combination of all the colors.
- Newton called this spread of colors a spectrum.
- color by reflection
- The color of an opaque object is the color of the light it reflects.
- The color of a transparent object is the color of the light it transmits.
- The material in the glass that selectively absorbs colored light is known as pigment.
- Yellow-green light is the brightest part of sunlight.
- Yellow-green light is the brightest part of sunlight.
- The material in the glass that selectively absorbs colored light is known as pigment.
- The color of a transparent object is the color of the light it transmits.
- The color of an opaque object is the color of the light it reflects.
- You can make almost any color at all by overlapping red, green, and blue light and adjusting the brightness of each color.
- Red, green, and blue are additive primary colors.
- color overlapping: red+green=yellow, red+blue=magenta, blue+green=cyan
- When two colors are added together to produce white, they are called complementary.
- Every color has some complementary color that when added to it will produce white.
- Every color has some complementary color that when added to it will produce white.
- When two colors are added together to produce white, they are called complementary.
- color overlapping: red+green=yellow, red+blue=magenta, blue+green=cyan
- Red, green, and blue are additive primary colors.
- When paints or dyes are mixed, the mixture absorbs all the frequencies each paint or dye in it absorbs.
- Magenta, yellow, and cyan are the subtractive primary colors.
- Scattering is a process in which sound or light is absorbed and reemitted in all directions.
- Scattering is a process in which sound or light is absorbed and reemitted in all directions.
- Magenta, yellow, and cyan are the subtractive primary colors.
- An excited state is a state with greater energy than the atom's lowest energy state.
- After an excited atom emits light, it returns to its normal state.
- After an excited atom emits light, it returns to its normal state.
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