In a thin film of oil on water, which color will appear at the center of the pat

In a thin film of oil on water, which color will appear at the center of the pattern if the film is viewed in white light? (2022)

In a thin film of oil on water, which color will appear at the center of the pattern if the film is viewed in white light? (2022)

Step 1: Understand that a thin film of oil on water creates an interference pattern when light hits it.
Step 2: Know that white light is made up of many colors (like a rainbow).
Step 3: Realize that when light reflects off the top and bottom surfaces of the oil film, some colors will combine and others will cancel out.
Step 4: At the center of the pattern, certain wavelengths (colors) will constructively interfere, meaning they combine to make a brighter color.
Step 5: For a typical thin film of oil, the color that appears at the center is usually green due to this constructive interference.

No concepts available.