The Luminescence Of Black Light

Essay specific features

 

Issue:

Science

 

Written by:

Sylvester M

 

Date added:

February 27, 2017

 

Level:

University

 

Grade:

A

 

No of pages / words:

2 / 444

 

Was viewed:

4396 times

 

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Essay content:

These sources are: the sun, carbon arcs, mercury arcs, and black lights. In most cases, the production of ultra-violet light creates a reasonable amount of heat. Many materials exhibit the peculiar characteristic of giving off light or radiant energy when ultra-violet light is allowed to fall upon them...
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This is called luminescence. In most cases, the wave length of the light radiated is longer than that of the ultra-violet excitation but a few exceptions 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...
displayed 300 characters

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