Final answer:
Soap bubbles show multicolored patterns due to light interference, a wave property of light that creates colors in the absence of pigments.
Step-by-step explanation:
The brilliant colors observed in soap bubbles under sunlight are produced through the phenomenon of light interference, not by pigments in the soap. When sunlight strikes the thin film of soap, it reflects off both the outer and inner surfaces of this film. These reflected light waves can interfere with each other, either constructively or destructively, enhancing or cancelling out specific wavelengths, and thus, creating the colors observed. Just as soap bubbles display colors, similar optical phenomena occur in situations like oil slicks and the surfaces of CDs. This shows the wave character of light and its ability to produce a spectrum of colors through interference, rather than relying on pigmentation. This explanation is consistent with the observations listed from the provided figures, showing that something as mundane as soap bubbles can create glee by demonstrating complex physical principles in a visually stunning way.