Which outcome reduces interferometer precision when path lengths exceed coherence?

💡 Explanation

Fringe visibility falls because constructive and destructive interference averages as path length differences exceed the source's coherence length, blurring fringes therefore precision degrades. This occurs rather than non-linear effects which require high intensity.

• Which risk increases when an MRI machine quenches?
• Which mechanical consequence results when water permeates the void space within concrete during prolonged freeze-thaw cycles?
• Which physical characteristic causes increased power fluctuation in subsea oil pipelines when the Reynolds number exceeds a specific threshold?
• Which material constraint limits sustained Lawson criterion fusion?
• During anisotropic material analysis with polarized light microscopy, which outcome indicates regions of high birefringence?
• Which mechanism causes a packed bed reactor with a deactivated catalyst to exhibit increased pressure drop?