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← ScienceWhich distortion results when atmospheric thermal gradients reduce coherence?
A)Beam steering becomes unpredictable.✓
B)Interference fringes shift positions.
C)Chromatic aberration intensifies broadly.
D)Brewster angle deviates consistently.
💡 Explanation
Turbulence induces random refraction impacting coherence, thereby causing unpredictable **beam wander**, because heat gradients shift refractivity; therefore, beam directions deviate, rather than predictable shifts such fringes under controlled experimental conditions.
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