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← HistoryIn historic Mughal monuments utilizing pietra natura, which failure increases when the surface heats unevenly?
A)Adhesive bond stress✓
B)Mortar ion migration
C)Inlay spectral blurring
D)Substrate thermal expansion
💡 Explanation
Uneven heating introduces differential stresses within the pietra inlay because the thermal expansion differences cause shear at the adhesive layer rather than uniform expansion. Therefore, adhesive bond stress increases; rather than changes to the mortar via migration, or issues purely intrinsic to spectral properties.
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