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Which risk arises when an interferometric gravitational wave detector underestimates mirror surface curvature?

A)Reduced detector resonance frequency sensitivity
B)Increased thermal lensing aberrations effects
C)Vacuum system leakage intensifies rapidly
D)Increased seismic noise displacement errors

💡 Explanation

Increased thermal gradients will create thermal lensing because nonuniform heat induces a refractive index change within the mirror based on prior variation in curvature, resulting in blurred or distorted signal rather than high focusing. Interferometers calibrate to predicted curvature.

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