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← ScienceWhich mechanism causes gravitational distortion of light paths?
A)Spacetime curvature due mass-energy equivalence✓
B)Refraction by gravitational potential gradient
C)Gravitational blueshift in contracting field
D)Quantum entanglement across event horizon
💡 Explanation
Spacetime curves near massive objects because of mass-energy equivalence, altering geodesics which are the shortest paths light follows. Therefore, light bends; rather than refraction, photons are following curved spacetime geometry.
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