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← ScienceWhich consequence is observed when stressed polymer films are viewed through orthogonal polarizers?
A)Stress-induced birefringence reveals interference colors✓
B)Optical rotation cancels polarization effects
C)Brewster's angle eliminates all reflections
D)Mie scattering enhances particle visualization
💡 Explanation
Stress causes a polymer to become birefringent, creating variations in refractive index. This changes the polarization of light passing through, and because constructive/destructive interference occurs when recombined by the analyzer, it produces visible colors rather than other optical effects.
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