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Question No. 61Interactive Test Mode
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Q61. Assertion (A) : The surface winds spiral inwards upon the centre of the cyclone. Reason (R) : Air descends in the centre of the cyclone.

Assertion (A) : The surface winds spiral inwards upon the centre of the cyclone. Reason (R) : Air descends in the centre of the cyclone.

Select the correct option below (or cross out options to eliminate)

Official Answer Key & Detailed Solution

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Click any option above to test yourself under exam conditions, or reveal the explanation directly.

Official UPSC Answer KeyUPSC Prelims 2002 • Geography

Correct Answer: Option (B) — Both A and R are true but R is NOT a correct explanation of A

Concept & Option Breakdown

Standard Reference Verified

Assertion (A) is true: At the surface, the steep pressure gradient draws air inward toward the intense central low pressure of a cyclone. The Coriolis force deflects this incoming air, causing it to spiral cyclonically (counter-clockwise in the Northern Hemisphere, clockwise in the Southern Hemisphere).

Reason (R) is true: In the eye (center) of a mature cyclone, air gently descends (subsides), warming adiabatically and suppressing cloud formation, which creates calm, clear conditions.

However, Reason (R) is not the causal explanation of Assertion (A). The surface inward spiraling is caused by the balance between the pressure gradient force, friction, and the Coriolis force.

Elimination Heuristic & Exam Approach

Understand the two distinct vertical flow regimes: air converges and spirals inwards at the surface/eyewall, but inside the eye itself, air subsides (descends). Both statements are true independently.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2002 (Q61)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicGeography → Human & Political Geography
Official Answer KeyOption (B) — Both A and R are true but R is NOT a correct explanation of A

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Frequently Asked Questions — UPSC Prelims 2002 Q61

What is the official answer for UPSC Prelims 2002 GS Paper I Question 61 (Geography)?

The official UPSC answer key for this 2002 Geography (Human & Political Geography) question is Option (B): "Both A and R are true but R is NOT a correct explanation of A". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2002 question belong to?

This question belongs to GS Paper I under the subject "Geography" and micro-topic "Human & Political Geography". You can explore all repeated questions from Human & Political Geography in Acme AI's 3D Prelims PYQ Realm or practice 50 full-length and sectional tests in the APT Prelims Test Series.

How can I solve this Human & Political Geography UPSC Prelims question using option elimination?

Understand the two distinct vertical flow regimes: air converges and spirals inwards at the surface/eyewall, but inside the eye itself, air subsides (descends). Both statements are true independently.

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