Does Gravity Also Affect Clocks?
We have just seen that the equivalence principle predicts that light bends in a gravitational field. What are the consequences of the equivalence principle for time?
- The observer at the bottom observes that the clock at the top appears to run faster than his clock( at the bottom)
- Reason: Time is defined using the speed of light. In the time it takes the pulses to travel to the bottom clock, the rocket has increased its velocity by an amount: v = at = aL/c ? = v/c = aL/c2