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IRIDESCENCE: INTERFERENCE IN THIN FILM (SOAP)<br />
Light Interference Causes A Colorful Pattern<br />
Light reflected from one surface of wedge shaped soap film may cancel light that reflects from the other. If hit w/white light, complementary color results from destructive interference. As film thins, phase difference increases & film appears black.

Fphoto-28169011P-2RM.jpg

IRIDESCENCE: INTERFERENCE IN THIN FILM (SOAP)
Light Interference Causes A Colorful Pattern
Light reflected from one surface of wedge shaped soap film may cancel light that reflects from the other. If hit w/white light, complementary color results from destructive interference. As film thins, phase difference increases & film appears black.

Copyright:© 1990 Richard Megna - Fundamental Photographs

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Richard Megna