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← ScienceWhich effect arises when incoherent beams overlap unevenly?
A)Speckle pattern minimum amplitude reduction present✓
B)Complete destructive interference predominates throughout
C)Uniform intensity increase maintains brightness
D)Stable interference fringe formation persists onward
💡 Explanation
Incoherent light sources won't have a stable phase relationship, so speckle pattern occurs via statistical variations. Amplitude distribution decreases, particularly minima, because sustained destructive interference isn't allowed, and localized superposition occurs rather than broad cancellation.
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