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← ScienceWhich outcome arises when multi-mode laser reflects off diffuser?
A)Speckle pattern displays✓
B)Doppler shift appears
C)Brewster angle vanishes
D)Thermal blooming initiates
💡 Explanation
A speckle pattern is observed because **constructive and destructive interference** occurs from the laser light scattering off the rough surface. Areas of brightness result; therefore, speckling is seen, rather than uniform intensity, because path differences create random interference.
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