Which consequence results when mechanically stressed polymers exhibit birefringence?

💡 Explanation

Because tensile stress induces temporary molecular alignment in the polymer, the **photoelastic effect** causes polarized light to refract differently. Therefore, stress patterns are observable as colored fringes, rather than uniform density changes, because of directional refractive index variations.

• Which outcome occurs when internal molecular hydrogen accelerates recombination in amorphous silicon?
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• Within a Haber-Bosch reactor, which consequence results when temperature decreases, despite unchanging rate constants?
• Which mechanism limits the efficiency of a thermochemical energy storage system that utilizes reversible reactions?
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• Which consequence results when rapid voltage changes saturate ferrite cores?