When does the sun shine vertically on the Equator ?

(1) Throughout the year
(2) For six months
(3) Twice a year
(4) Once a year

Correct Answer : (3) Twice a year, the sun shine vertically on the Equator.


Equinox occurs when the Sun shine vertically on the Equator. At this time, the sun equally illuminates the Southern and Northern hemisphere. At this time the world experiences equal day and night.

This happens twice a year, and these are the “equinoxes” on the March equinox (typically around March 21) and on the September equinox (typically around September 22).

Between the two tropic zones, which includes the equator, the Sun is directly overhead twice per year.

Outside the tropic zones, whether to the south or north, the Sun is never directly overhead.

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