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Questions and Answers
What is the unit of frequency equal to one trillion Hertz?
What determines the frequency of electromagnetic radiation?
What is the frequency range of visible light?
What is the relationship between frequency and wavelength?
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What is the equation that relates frequency and wavelength?
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What did Homer describe the ocean as?
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What determines how strongly an eye sees a certain color?
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Which animal can see in the ultraviolet range?
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What is certain about the color 592 THz?
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What is unique about the mantis shrimp's eyes?
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What is the range of frequency of visible light in THz?
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What happens when light shines on an object?
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What is the color of light with the highest frequency?
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Why isn't everything white?
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What can be used to separate white light into its constituent colors?
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What is the purpose of the electromagnetic spectrum?
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What happens to the frequency of light as the wavelength decreases?
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What is a characteristic of all types of electromagnetic radiation?
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What is true about the human eye?
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What is the purpose of the equation c = λf?
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What is the approximate range of frequency of yellow light?
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What is the result when light shines on an object?
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Why is white light not a single color in the visible spectrum?
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What is the order of colors in the visible spectrum, from lowest frequency to highest?
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What happens to the light when it is absorbed by an object's atoms?
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What can influence how we interpret something like color?
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What do researchers do to understand how animals see color?
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Which animal can see more colors than humans?
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How do different people interpret the color 592 THz?
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What is special about the eyes of spiders and insects like bees?
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Study Notes
Frequency of Light
- Electromagnetic radiation travels through space as a wave, and different types of radiation vary by frequency.
- The electromagnetic spectrum is ordered by frequency, with visible light ranging from 400 THz to 700 THz.
Characteristics of Light
- A hertz is defined as the number of oscillations or repeats of a cycle in one second.
- Frequency is how many times a complete wave passes by a fixed point in one second.
- All light travels at the same speed, regardless of frequency, so light with a longer wavelength has a smaller frequency and vice versa.
Electromagnetic Spectrum
- Radio:
- Microwave:
- Infrared:
- Visible Light: 400 THz to 700 THz
- Ultraviolet:
- X-Ray:
- Gamma Ray:
Visible Light Frequency
- Visible light occurs between 400 THz and 700 THz.
- The frequency increases from red to violet, with a corresponding decrease in wavelength.
- White light is a combination of all colors of the spectrum, not a specific frequency on the visible spectrum.
Color Frequency
- There are seven pure spectral colors in the light color spectrum, in order from lowest frequency to highest: red, orange, yellow, green, blue, indigo, and violet.
- Color frequency ranges:
- Red: 400-480 THz
- Orange: 480-510 THz
- Yellow: 510-530 THz
- Green: 530-600 THz
- Blue: 600-670 THz
- Indigo: 670-700 THz
- Violet: 700-750 THz
The Nature of Color
- The perception of color is influenced by personal experiences and cultural knowledge.
- Different people may interpret the same color differently.
- Non-human eyes can detect light in different frequencies, with some animals seeing fewer or more colors than humans.
Frequency of Light
- Electromagnetic radiation travels through space as a wave, and different types of radiation vary by frequency.
- The electromagnetic spectrum is ordered by frequency, with visible light ranging from 400 THz to 700 THz.
Characteristics of Light
- A hertz is defined as the number of oscillations or repeats of a cycle in one second.
- Frequency is how many times a complete wave passes by a fixed point in one second.
- All light travels at the same speed, regardless of frequency, so light with a longer wavelength has a smaller frequency and vice versa.
Electromagnetic Spectrum
- Radio:
- Microwave:
- Infrared:
- Visible Light: 400 THz to 700 THz
- Ultraviolet:
- X-Ray:
- Gamma Ray:
Visible Light Frequency
- Visible light occurs between 400 THz and 700 THz.
- The frequency increases from red to violet, with a corresponding decrease in wavelength.
- White light is a combination of all colors of the spectrum, not a specific frequency on the visible spectrum.
Color Frequency
- There are seven pure spectral colors in the light color spectrum, in order from lowest frequency to highest: red, orange, yellow, green, blue, indigo, and violet.
- Color frequency ranges:
- Red: 400-480 THz
- Orange: 480-510 THz
- Yellow: 510-530 THz
- Green: 530-600 THz
- Blue: 600-670 THz
- Indigo: 670-700 THz
- Violet: 700-750 THz
The Nature of Color
- The perception of color is influenced by personal experiences and cultural knowledge.
- Different people may interpret the same color differently.
- Non-human eyes can detect light in different frequencies, with some animals seeing fewer or more colors than humans.
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Description
Learn about light as a form of electromagnetic radiation, its frequency, and the electromagnetic spectrum. Discover the frequency range of visible light and its unit of measurement.
