Colour G12
K Warne
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Wave Speed
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Vision
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Colour ADDITION - Light
Primary Colours:
R, G & B
Complementary Colours:
R & Cy
M & G
Y & B
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Selective Reflection
• Opaque objects - light does not pass through them.
• The color of opaque objects is dependant on the colors that are absorbed.
Cyan Magenta Yellow
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Blue
• BLue is seen when red and Green are absorbed.
Blue (in white light)
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How a rainbow is formed?
ROYGBIV
Same order!
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Colour Problems1. When monochromatic light passes through glass its frequency changes.
T/F ?? (2)
2. Cut glass is used to make ornaments. In light, it shows all the colours of the
rainbow. Which ONE of the following is NOT an explanation for this
observation?
A White light consists of a spectrum of colours.
B Each colour in white light is refracted by different amounts in glass.
C Cut glass has its own characteristic colours.
D White light splits into colours of different frequencies as it passes through glass.
(3)
3.
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Hi -
This is a SAMPLE presentation only.
My FULL presentations, which contain loads more slides and other resources, are freely
available on my resource sharing website:
www.warnescience.net
(paste into your browser if link above does not work)
Have a look and enjoy!
Keith Warne