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During the Islamic Golden Age, which issue worsened astrolabe accuracy under high humidity?

A)Lenses experience chromatic aberration
B)Metal disk experiences thermal expansion
C)Mirrors suffer surface oxidation
D)Glass undergoes accelerated devitrification

💡 Explanation

Mirrors oxidize at higher speeds in humid environments, obscuring the reflected field needed for precise angular measure; this surface imperfection reduces visibility because it induces diffuse scattering, therefore accurate angle readings become difficult rather than other distortion effects on lenses.

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