Which of the following statements is/ are incorrect?
a.The Bay of Bengal branch of the monsoon arrives in Assam in the first week of June.
b. Delhi generally receives monsoon showers from the Arabian sea branch.
c. The duration of the monsoon varies from 100 to 120 days from early June to mid September.
d. All are incorrect
Answers
a) This statement is true.
=> The Bay of Bengal Branch of the South-West monsoon firstly strikes the Myanmar coast, gets deflected towards India and South East Bangladesh by the Arakan Yoma Range, then it splits into two parts, one moves through the Brahmaputra valley and the other through the Ganges plains.
=>The branch that moves over the Brahmaputra plains brings rainfall to Meghalaya and Assam and other parts, it arrives there in Early June.
b) This statement is false.
=> Delhi receives rainfall mostly from the Bay of Bengal branch of the South West Monsoon which moves over the Indo-Gangetic plains. The Arabian sea branch moves through the states of Gujarat and Rajasthan, then it moves over Haryana, some parts of Punjab and meets the Bay of Bengal Branch in the North-Western Gangetic plains, it does not flow near Delhi.
c) This statement is true.
=> The Indian South-West monsoon typically lasts between June and September over a course of 4 months => 4 x 30 days => 120 days.
=> So, the incorrect statement here is b)