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← ScienceWhich mechanism distorts signal timing near celestial objects?
A)Gravitational time dilation dominates spacetime curvature✓
B)Doppler shift alters wave phase velocity
C)Refraction introduces signal propagation delays
D)Quantum decoherence scrambles entangled photon pairs
💡 Explanation
Gravitational time dilation near massive objects occurs because spacetime curvature is greater; therefore, the signal travels a longer path relative to a distant observer, rather than Doppler shift effects arising because of velocity.
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