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← ScienceWhich outcome occurs when stressed polycarbonate loses transparency?
A)Stress-induced birefringence yields polarization✓
B)Decreased scattering reduces contrast ratio
C)Increased refraction affects focal length
D)Material resonance amplifies light intensity
💡 Explanation
Stress causes temporary alignment of polymer chains. The stress-induced birefringence mechanism splits one ray into two with different refractive indices, altering polarization; therefore, the material appears opaque rather than having modified contrast, because birefringence changes polarization state.
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