Why are Ahmedabad and Kolkata able to see the noon seen exactly overhead twice a year but not Delhi?
The sun’s apparent movement towards north and south of the equator is within two tropics. (a) All the places located within the tropics have overhead sun twice a year. (b) Both Ahmedabad and Kolkata lie to the south of the Tropic of Cancer. That is why these two stations see the noon sun overhead twice a year. (c) Delhi is located at 29°N latitude much to the north of Tropic of Cancer. (d) The sun’s rays are near overhead in sub-tropical zone. It will never see noon sun overhead, at anytime of the year.