{"knowledge_schema": {"broad_category": "Physics \u2192 Optics \u2192 Light Interaction with Matter", "refinement": "This problem involves the interaction of light with a solution, specifically focusing on the effects of polarization and potential dispersion of light through a medium.", "specific_scope": "The scenario describes a clear acrylic tube filled with a D-glucose solution and how white light behaves as it passes through this solution and is viewed from the side.", "goal": "Determine the visual appearance of the tube when viewed from the side, considering the effects of light transmission, polarization, and any potential dispersion."}, "summary": "In this problem, we are examining how white light interacts with a D-glucose solution inside a clear acrylic tube. When white light passes through the solution, it may undergo some dispersion, potentially creating a rainbow effect. However, since the light is polarized and viewed from the side, the observer will likely see a tube with a rainbow gradient that progresses in a manner perpendicular to the light beam due to the way light is refracted and dispersed in the solution. Therefore, the correct answer is option 5: A tube with a rainbow gradient progressing in a manner perpendicular to the light beam."}