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The Luminescence Of Black Light
Start of Term Paper
Black Light. What is it? It is a portion of the Ultra-Violet Spectrum
that is invisible to our eyes. We can not distinguish it. However, when this
radiation impinges on certain materials visible light is emitted and this is
known as "fluor .... Middle of Term Paper
... have been
found.
The quantum theory attempts to explain this property by contending that
a certain outside excitation causes an electron to jump from one orbit to
another. It is then in an unstable environment causing it to fall back into its
original orbit. This process releases energy, and if it is in the visible part
of the spectrum, we have a transient light phenomenon. Ultra-violet light is an
exciting agent which causes luminescence to occur.
There are many materials which exhibit fluorescent characteristics.
Many of which are even organic. Teeth, eyes, some portions of the skin, and
even blood exhibit fluorescent qualities. ... |
| Number of Words: 442 |
Approximate Pages: 2 |
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