Solved UPSC CDS/OTA Question
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Q · Longitudemedium · 45s
What causes the difference between true north and magnetic north?
TopicLongitude
Question Typemultiple choice
Difficultymedium
Test Duration30 min
Step-by-Step Solution
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Magnetic declination occurs due to Earth's magnetic field differing from geographical (true) north.
Final Answer: Option C - Geomagnetic field variation