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M4-22: SOAP FILM INTERFERENCE - PROJECTION 9 years 7 months ago #999

  • zzfixk21
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ID Code: M4-22
Purpose: Demonstrate soap film interference in a complicated way.
Description: Light from the bright point source is focused by a 30 cm focal length convex lens onto a small wire loop with a soap film. The reflected light from the soap film is focused onto a screen by a 5 cm focal length convex lens, and the transmitted light is focused by a second 5 cm convex lens and positioned on the screen using a small front surface mirror.
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