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UPSC 1999: At which one of the following positions shown in the diagram will the height of the ocean tide be maximum?
(a)M1
(b)M2
(c)M3
(d)M4
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Not attemptedCorrect Answer: (b) M2
Maximum (spring) tides occur when the Earth, Moon and Sun are in syzygy (new- or full-moon), so their gravitational pulls reinforce each other. In the diagram, position M2 shows this linear alignment, giving the greatest tidal range. ([britannica.com](https://www.britannica.com/science/spring-tide?utm_source=openai))
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Frequently Asked Questions
What is the correct answer to this UPSC 1999 Geography question?▼
The correct answer is option (b): M2. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Oceanography question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 1999, GS Paper 1, as Question 21. It falls under Geography > Oceanography.
What is the difficulty level of this UPSC question?▼
This question is rated "moderate". It requires sound conceptual understanding of the topic.
How many UPSC Prelims questions have been asked from Oceanography?▼
UPSC has asked 21 questions from Oceanography (under Geography) across multiple years. Visit the topic page to see the full list and year-wise trends.