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← ScienceWhich gravitational effect impacts a cesium atomic clock's rate from relativistic spacetime on a GPS satellite?
A)Frame dragging causes signal variance
B)Time dilation modifies tick rate✓
C)Gravitational lensing refracts photons
D)Cosmological redshift alters wave frequency
💡 Explanation
On GPS satellites, orbital velocity and weaker gravity result in relativistic effects that influence clock precision; time dilation causes decreased tick rate because of velocity and increased tick rate because of gravitational potential, therefore recalibration, rather than Doppler or lensing issues, is critical.
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