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← ScienceWhich consequence affects photon arrival when encountering significant spacetime curvature?
A)Gravitational time dilation redshift occurs✓
B)Increased photon energy blueshift occurs
C)Quantum entanglement instantaneously collapses
D)Spontaneous particle pairs always appear
💡 Explanation
Gravitational time dilation causes redshift because the **Shapiro delay** creates a longer path time. Therefore, photons lose energy arriving later and appear redshifted, rather than gaining energy to appear blueshifted because that would require the spacetime curvature to cause inverse transformations.
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