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Which artifact commonly occurs when attempting holographic interferometry on large, non-vibration isolated mechanical components?

A)Fringe blurring decreases image resolution
B)Speckle contrast reveals subtle fractures
C)Moire patterns indicate surface oxidation
D)Chromatic aberration shows thermal gradients

💡 Explanation

Fringe blurring decreases image resolution because path length differences exceed the coherence length of laser, causing destructive interference rather than sustained fringes. Therefore blurring results, rather than speckle, moire, or color artifacts that arise for different physical reasons.

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