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Which distortion influences a GPS satellite's clock rate?

A)Gravitational time dilation
B)Orbital frame dragging
C)Cosmic microwave background shift
D)Solar neutrino flux variation

💡 Explanation

A GPS satellite experiences gravitational time dilation because its weaker gravitational field affects spacetime less than Earth's stronger field; therefore its onboard clock appears to tick faster relative to a terrestrial observer, rather than by orbital mechanics.

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