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Light
- Can act as a particle or a wave (wave-particle duality)
- Wavelength
- Determines colour
- Frequency
- Cycles per unit of time
- Speed
- Light travels at
- Light is additive
- Used to make observations in astronomy
Visible Light
- Part of electromagnetic spectrum to which our eyes are sensitive
- What humans can see
- ROYGBIV
- Red
- Orange
- Yellow
- Green
- Blue
- Indigo
- Violet
- Large wavelength (R) --> small wavelength (V)
- Small frequency (R) --> large frequency (V)
Speed of Light
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