question_answer

Explain why Ahmedabad and Kolkata are able to see the noon sun exactly overhead twice a year but not Delhi.

Answer:

The sun's apparent movement towards north and south of the equator is within the two Tropics. Thus, all the places located within the two Tropics have overhead sun twice a year.

(a) Both Ahmedabad and Kolkata lie to the south of Tropic of Cancer. That is why these two stations see noon sun overhead twice a year.

(b) Delhi is located at \[29{}^\circ N\]latitude much to the north of Tropic of Cancer. Rays of sun are near overhead in sub-tropical zone. It will never see noon sun overhead, at any time of the year.