Which optical effect increases with laser beam divergence?

💡 Explanation

Increased laser beam divergence causes higher speckle contrast because interference patterns become more complex due to broader range of angles. Therefore, speckle becomes more pronounced, rather than Raman scattering or Bragg diffraction which is limited by material properties.

• Which outcome occurs when rapid heating of a metal occurs during quenching?
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• Which consequence results when a fluid reaches transitional turbulence in a fuel injection system?
• Which mechanism causes variation between the measured ages of old zircons?
• Which outcome reduces catalytic efficiency when reactant concentration saturates enzymatic active sites?