WHAT MAKES RED DIFFERENT THAN BLUE? THEY HAVE DIFFERENT WAVELENGTHS AND DIFFERENT FREQUENCIES.

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Presentation transcript:

WHAT MAKES RED DIFFERENT THAN BLUE? THEY HAVE DIFFERENT WAVELENGTHS AND DIFFERENT FREQUENCIES

ROYGBIV The only thing we SEE is LIGHT R OYGBIV IS ABSORBED You don’t see peppers - you see red light reflected from peppers

THE PEPPER HAS RED PIGMENT material that selectively absorbs color

THE PRIMARY COLORS OF LIGHT ARE: IN THIS CLASS WE’RE GOING TO SIMPLIFY THE SPECTRUM INTO 3 PRIMARY COLORS LOW fMED fHIGH f

RED GREEN BLUE WHITE YELLOW MAGENTACYAN

R G B R G B IS ABSORBED

R G B G R B IS ABSORBED

R G B R B G IS ABSORBED

R G B R G B IS ABSORBED

R G B No light IS ABSORBED That is why it is coolest to wear white

R G B No light All light IS ABSORBED That is why it is hotest to wear black

* White is the combination of all light * Black is the absence of light

Two colors that combine to make white light RED &CYAN BLUE & GREEN & YELLOW MAGENTA

1.Red + Blue = 2.White - Green= 3.White - Cyan= 4.Yellow + Blue= Magenta Red White

B The source of light is not always white There is no light reflected, the pepper appears BLACK B IS ABSORBED

R R The banana would appear red