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← ScienceWhich phenomenon maintains light speed in accelerating reference frames?
A)Spacetime curvature induces path alteration✓
B)Velocity addition alters light frequencies
C)Frame dragging compensates particle motion
D)Time dilation extends propagation intervals
💡 Explanation
Spacetime curvature bends the path of light, so its measured speed remains constant for all observers because of the principle of equivalence; therefore, measurement stays constant, rather than varying based on gravitational effects alone at relativistic speeds
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