Assertion and Reason Type Question.

Assertion (A): During October, with the apparent movement of the sun towards the south, the monsoon trough or the low pressure trough over the northern plains becomes weaker.

Reason (R): The south-west monsoon becomes stronger.

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Both (A) and (R) are true and (R) is the correct explanation of (A).

Both (A) and (R) are true and but (R) is the correct explanation of (A).

(A) is correct but (R) is wrong.

(A) is wrong but (R) is correct.

answer is C.

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Detailed Solution

The Assertion is correct, but the Reason is incorrect.
During October, with the sun's apparent movement towards the south, the monsoon trough or the low-pressure trough over the northern plains becomes weaker. Throughout October and the start of November, as the precise place of the sun changes towards the south, the place of the low-pressure storm box debilitates over the northern plain, which is then leisurely supplanted by the high-pressure framework. So the Assertion is valid. However, the southwest storm twists start to debilitate and begin withdrawing gradually. Also, by the start of October, the rainstorm retreats. So this Reason is correct.

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