In a thin film of oil on water, what color will be seen if the film thickness is

In a thin film of oil on water, what color will be seen if the film thickness is such that destructive interference occurs for blue light? (2021)

In a thin film of oil on water, what color will be seen if the film thickness is such that destructive interference occurs for blue light? (2021)

Step 1: Understand that a thin film of oil on water can create different colors due to interference of light.
Step 2: Know that interference can be constructive (colors add up) or destructive (colors cancel out).
Step 3: Identify that if destructive interference occurs for blue light, it means blue light is canceled out.
Step 4: Learn about complementary colors: the color opposite to blue on the color wheel is red.
Step 5: Conclude that if blue light is canceled out, the color that will be seen is red.

No concepts available.