On 21st June, the Sun

On 21st June, the Sun

does not set below the horizon at the Arctic Circle
does not set below the horizon at the Antarctic Circle
shines vertically overhead at noon on the Equator
shines vertically overhead at the Tropic of Capricorn
This question was previously asked in
UPSC IAS – 2019
Option A is correct. On June 21st, which is the summer solstice in the Northern Hemisphere, the Sun is directly overhead at the Tropic of Cancer (23.5° N). As a result, areas north of the Arctic Circle (66.5° N) experience 24 hours of daylight, meaning the sun does not set below the horizon.
– June 21st is the summer solstice in the Northern Hemisphere.
– The Sun’s rays are vertical over the Tropic of Cancer (23.5° N) on this day.
– Regions north of the Arctic Circle (66.5° N) experience the “midnight sun” (24 hours of daylight).
– On the same day, the Antarctic Circle (66.5° S) experiences 24 hours of darkness because it is winter in the Southern Hemisphere.
– The Sun is directly overhead at the Equator only during the equinoxes (around March 20/21 and September 22/23).
– The Sun is directly overhead at the Tropic of Capricorn (23.5° S) during the winter solstice in the Northern Hemisphere (around December 21/22).