Question

what is the maximum time of totality for any total solar eclipse observed from earth’s surface?
a. a full 12-hour period
b. about 2 hours
c. about 7.5 minutes
d. only a few seconds

Explanation:

The maximum time of totality for a total solar eclipse observed from Earth's surface is a known astronomical fact. The longest possible duration of totality for a total solar eclipse is about 7.5 minutes. Option a (12 - hour) is incorrect as the eclipse's totality phase is much shorter. Option b (2 hours) is also incorrect as the totality phase is not that long. Option d (a few seconds) is too short for the maximum; the maximum is around 7.5 minutes.

Answer:

c. about 7.5 minutes