What happens when you drop a clock into a black hole?
A. The clock appears to be advancing at its normal rate both from the point of view of an outside observer and from the point of view of an observer falling with the clock.
B. The clock appears to be advancing rapidly from the point of view of an outside observer, but normally for an observer falling with the clock.
C. The clock appears to be advancing slowly from the point of view of an outside observer, but normally for an observer falling with the clock.
D. The clock appears to be advancing slowly both from the point of view of an outside observer and from the point of view of an observer falling with the clock.
E. The clock appears to be advancing rapidly both from the point of view of an outside observer and from the point of view of an observer falling with the clock.
Answer: C. The clock appears to be advancing slowly from the point of view of an outside observer, but normally for an observer falling with the clock.
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