Which outcome limits fringe contrast when illuminating air-spaced Fabry-Pérot interferometer mirrors?

💡 Explanation

Limited coherence reduces fringe contrast because constructive and destructive interference varies with the frequency spread. Reduced coherence means the wave train's phase is less correlated over distance; therefore, interference fades rather than improving contrast across the mirrors.

• Which outcome occurs when thermal energy overcomes magnetocrystalline anisotropy in iron?
• Which risk increases when high pressure ethylene flows at 28 m/s through a DN50 control valve?
• Which consequence results when potassium iodide catalyzes hydrogen peroxide decomposition reaching equilibrium?
• Which consequence results when a microfluidic channel's dielectric layer degrades?
• Which outcome occurs when high gravity bends light?
• Which outcome is observed from ultraviolet radiation of titanium dioxide?