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← ScienceWhich blurring increases when a telescope observes through turbulence?
A)Decreased spatial resolution due to coherence✓
B)Increased spectrum smearing due to aberration
C)Reduced signal gain, limiting amplification
D)Photon arrival delays, disabling autocorrelation
💡 Explanation
Turbulence causes rapidly varying refractive index changes. This degrades wave coherence across the telescope aperture, reducing the effective angular resolution, and blurring the image because the arriving light becomes locally uncorrelated, therefore affecting spatial resolution rather than spectral properties.
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