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NATURAL SOURCE OF LIGHT
ARTIFICIAL SOURCE OF LIGHT
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NATURAL SOURCE OF LIGHT
ARTIFICIAL SOURCE OF LIGHT
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NATURAL SOURCE OF LIGHT
ARTIFICIAL SOURCE OF LIGHT
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NATURAL SOURCE OF LIGHT
ARTIFICIAL SOURCE OF LIGHT
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NATURAL SOURCE OF LIGHT
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LUMINOUS
NON-LUMINOUS
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LUMINOUS
NON-LUMINOUS
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LUMINOUS
NON-LUMINOUS
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LUMINOUS
NON-LUMINOUS
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LUMINOUS
NON-LUMINOUS
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brightness
frequency
violet
blue
red
inversely
directly
visible light
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brightness
frequency
violet
blue
red
inversely
directly
visible light
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brightness
frequency
violet
blue
red
inversely
directly
visible light
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brightness
frequency
violet
blue
red
inversely
directly
visible light
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brightness
frequency
violet
blue
red
inversely
directly
visible light
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VIOLET
YELLOW
WHITE
MAGENTA
CYAN
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VIOLET
YELLOW
WHITE
MAGENTA
CYAN
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VIOLET
YELLOW
WHITE
MAGENTA
CYAN
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VIOLET
YELLOW
WHITE
MAGENTA
CYAN
0