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Question No. 103Interactive Test Mode
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Q103. Consider the following statements : 1. The axis of the earth’s magnetic field is inclined at 23 and half to the geographic axis of the earth. 2. The earth’s magnetic pole in the Northern Hemisphere is located on a Peninsula in Northern Canada. 3. The earth’s magnetic equator passes through Thumba in South India. Which of the statements given above is/are correct?

Consider the following statements :

  1. The axis of the earth’s magnetic field is inclined at 23 and half to the geographic axis of the earth.
  2. The earth’s magnetic pole in the Northern Hemisphere is located on a Peninsula in Northern Canada.
  3. The earth’s magnetic equator passes through Thumba in South India. Which of the statements given above is/are correct?
Select the correct option below (or cross out options to eliminate)

Official Answer Key & Detailed Solution

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Official UPSC Answer KeyUPSC Prelims 2005 • Geography

Correct Answer: Option (B) — 2 and 3

Concept & Option Breakdown

Standard Reference Verified

Statement 1 is incorrect: The Earth's magnetic dipole axis is inclined at roughly 11.3 degrees to the geographic rotational axis, not 23.5 degrees (which represents Earth's axial tilt relative to the orbital plane).

Statement 2 is correct: The North Magnetic Pole is historically situated in northern Canada's Arctic territories.

Statement 3 is correct: The dip equator (magnetic equator) passes very close to Thumba (near Thiruvananthapuram, Kerala), which is why the Thumba Equatorial Rocket Launching Station (TERLS) was established there.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2005 (Q103)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicGeography → Physical Geography
Official Answer KeyOption (B) — 2 and 3

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Frequently Asked Questions — UPSC Prelims 2005 Q103

What is the official answer for UPSC Prelims 2005 GS Paper I Question 103 (Geography)?

The official UPSC answer key for this 2005 Geography (Physical Geography) question is Option (B): "2 and 3". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2005 question belong to?

This question belongs to GS Paper I under the subject "Geography" and micro-topic "Physical Geography". You can explore all repeated questions from Physical 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 Physical Geography UPSC Prelims question using option elimination?

To solve Physical Geography questions in UPSC Prelims, identify extreme modifiers, verify core NCERT conceptual definitions, and eliminate mutually contradictory statement pairs before locking your final option.

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