Question

Which of the following winds causes rainfall in Tamil Nadu?
(a) Cyclonic winds in the Arabian Sea
(b) South-West monsoons
(c) North-East monsoons
(d) North-West monsoons

Answer 1

Hint:
 North-east trade winds over India reign during the winter season. They blow from land to sea, and so it's a dry season for much of the world. Owing to these waves, however the Tamil Nadu Coast gets winter rainfall. This is because these winds blow from sea to land in this area, thereby bringing moisture with them.

Complete solution:
Rainfall in Tamil Nadu is caused by North-East monsoon winds. These winds blow over the Bay of Bengal before hitting the coast of Coromandel, Tamil Nadu. These winds are gathering moisture from the Bay of Bengal and causing Tamil Nadu to flood. In Tamil Nadu, rainfall is also caused by cyclones developing over the Bay of Bengal. During the monsoons, Tamil Nadu gets rain because of the southwest monsoon winds that blow into the northern hemisphere. Due to the northeast trade winds, it receives rainfall in the winters. While most of the country receives precipitation during summers, Tamil Nadu's coastal areas receive precipitation during winters. This is because of the monsoon that is retreating, which ranges from mid-September to mid-November. Cyclones originate in the Bay of Bengal during this time, which makes the weather intolerable, causing high humidity. After picking up moisture from the Indian Ocean and causing rainfall, these cyclones struck the Tamil Nadu coast.

Hence, the correct answer is option C.

Note:
The Climate of Tamil Nadu is generally tropical and fairly hot over the year except during the monsoon seasons. Tamil Nadu gets rains during the monsoon season due to the southwest trade winds which blow towards the northern hemisphere.