Multiple Choice
The longest duration of a total lunar eclipse (i.e.,how long the Moon is within the umbra) is 107 minutes.If it takes the Moon 57 minutes to move a distance equal to its own diameter against the background stars,how wide is Earth's umbra at the closest distance of the Moon's orbit?
A) about the same as the Moon's diameter
B) a little less than twice the Moon's diameter
C) a little less than three times the Moon's diameter
D) It is not possible to calculate the answer from this information.
Correct Answer:
Verified
Correct Answer:
Verified
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