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← ScienceWhich outcome occurs when a laser beam encounters small airborne particles?
A)Diffraction creates an interference pattern✓
B)Absorption heats nearby air locally
C)Polarization shifts the beam's angle
D)Coherence diminishes the beam quickly
💡 Explanation
Diffraction occurs, bending the light around particles, because Huygens' principle dictates that each point on the wavefront acts as a secondary source; therefore, light interferes leading to dark/bright bands rather than simple forward propagation.
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