In a thin film interference, what causes the colors seen in soap bubbles?
Correct Answer: Thin film interference
- Step 1: Understand that soap bubbles are made of a thin layer of soap and water.
- Step 2: Light hits the surface of the soap bubble and some of it reflects off the top surface.
- Step 3: The rest of the light goes into the bubble and reflects off the bottom surface.
- Step 4: The light that reflects off the top and bottom surfaces can interfere with each other.
- Step 5: Depending on the thickness of the soap film and the angle of the light, some colors will be enhanced while others will be canceled out.
- Step 6: This interference creates the beautiful colors we see in soap bubbles.
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