Tuesday, May 15, 2012
unit 21:Light and Heat
Light
light travels in a straight line and prom one medium to another and causing refraction.
refraction:
-when light passes through.
-a prism.
-droplets of rain.
-waterfall.
-spray of water from a garden hose
(all of these causing dispersion of the component colours of light.)
Colour of Light:
-Red
-Orange
-Yellow
-Green
-Blue
-Indigo
-Violet
Heat
Travels through conduction,convection and radiation.
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