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Gravity Probe B

Testing Einstein's Universe

Special & General Relativity Questions and Answers

When a photon falls in a gravitational well, does its speed exceed 'c'?

No. The frequency of the light just increases or decreases depending on where you are located. The speed stays the same.


Copyright 1997 Dr. Sten Odenwald Return to Special & General Relativity Questions and Answerspage.