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Electromagnetic waves and black body radiation Typeit
Target Level
4-5
Running Total
0
0%
Attempt
1 of 3
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Waves transfer energy and information from one place to another. Waves can be defined in terms of:
The properties and applications of electromagnetic waves depend on their wavelengths. The electromagnetic spectrum is grouped into different regions from the longest wavelength group, , to the shortest wavelength group, . The human eye can see wavelengths of approximately 380 nm to 740 nm.
Lenses are used to change the direction of light. lenses focus light rays into a single point. lenses cause light rays to move away from each other.
All objects absorb and emit radiation. A absorbs and re-emits all the radiation incident on it.
- , the maximum distance that a particle in the wave moves from its equilibrium position
- , the number of oscillations that occur per second. This is measured in .
- , the distance between two similar points on a wave
The properties and applications of electromagnetic waves depend on their wavelengths. The electromagnetic spectrum is grouped into different regions from the longest wavelength group, , to the shortest wavelength group, . The human eye can see wavelengths of approximately 380 nm to 740 nm.
Lenses are used to change the direction of light. lenses focus light rays into a single point. lenses cause light rays to move away from each other.
All objects absorb and emit radiation. A absorbs and re-emits all the radiation incident on it.