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← ScienceWhich visual artifact occurs when constructive interference of non-coherent laser light?
A)Speckle pattern distorts image clarity✓
B)Reduced power output from constructive addition
C)Increased bandwidth from incoherent superposition
D)Stable interference with greater resolution
💡 Explanation
A speckle pattern decreases image sharpness because random interference enhances some points and cancels others. This coherent artifact is due to constructive/destructive superposition of amplitudes rather than phase canceling. Thus, it creates spatial intensity variations, rather than stable uniformity.
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