GK
WORLD GEOGRAPHY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The time interval from when the given star passes directly overhead to when it next passed directly overhead, is defined as
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one sidereal day
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one solar day
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both the terms are similar, so any of these may be used
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None of the above
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Explanation:
Detailed explanation-1: -A measurement of the sidereal day is made by noting the time at which a particular star passes the celestial meridian (i.e. directly overhead) on two sucessive nights. On Earth, a sidereal day lasts for 23 hours 56 minutes 4.091 seconds, which is slightly shorter than the solar day measured from noon to noon.
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