Which outcome reduces speckle noise when combining overlapping holographic images?

💡 Explanation

Temporal coherence averaging works because speckle patterns are uncorrelated in time across coherent sources; therefore random addition cancels the intensity variations, rather than worsening contrast as would happen with phase-locked interference.

• In a pressurized water reactor (PWR), which consequence occurs when control rods fully withdraw?
• Which risk increases when applying excessive voltage across a MOSFET gate?
• What occurs within a refrigeration system when refrigerant undergoes a phase change in the evaporator?
• Which outcome occurs when cladding refractive index approaches core's?
• Which outcome occurs when substantial strain distorts crystal lattice?
• Which outcome occurs when a closed cryogenic tank containing liquid helium experiences rapid depressurization?