Which visual effect occurs when an oil film contaminates asphalt?

💡 Explanation

Iridescent bands appear because thin-film interference splits white light into component wavelengths; therefore color bands appear, rather than other effects like melting, because the oil selectively enhances some wavelengths depending on thickness.

• Which outcome occurs when anhydrous magnesium chloride decomposes?
• Which consequence results when the Navier-Stokes equations neglect fluid viscosity?
• Which mechanism reduces required reaction temperature in industrial catalytic cracking of petroleum?
• Which consequence results when a light beam passes near extreme spacetime curvature?
• Which outcome occurs when dust accumulates on a pulsed laser's optics?
• Which process enables sustained energy output when reactor criticality is reached?