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Which distortion compromises telescope image resolution during prolonged observations?

A)Atmospheric turbulence induces speckle patterns
B)Mirror surface oxidization increases reflectance
C)Internal stresses causes thermal expansion
D)Vibration induces chromatic aberration shifts

💡 Explanation

Atmospheric turbulence causes image distortion because variations in air density lead to differing refractive indices; therefore, constructive and destructive interference create speckle patterns degrading resolution rather than other distortions from mechanical effects.

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