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4 June, 09:42

The filament in a lightbulb provides a demonstration of which phenomenon?

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  1. 4 June, 11:30
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    Short answer is Blackbody radiation: this is the light given off when something gets hot. For example the heating element on a stove glows red-orange when it is on high; the light bulb is the same thing, it is just hotter so the light is 'whiter'.
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