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← ScienceWhich outcome occurs when a green laser with high coherence illuminates a dense liquid containing suspended nanoparticles?
A)Increased particle sedimentation rate occurs
B)Speckle pattern due to constructive interference✓
C)Reduced laser power through Rayleigh scattering
D)Stable molecular bonds form instantly
💡 Explanation
Irregular scattering produces a speckle pattern because the coherence of the laser light causes constructive and destructive interference. Therefore, option B is correct rather than altering sedimentation, reducing power through incoherent scattering, or initiating bond formation, which require other conditions.
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