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Q66 (IAS/2004) Geography › Indian Physical Geography › Indian coastal geography Answer Verified

Which one of the following statements is not correct?

Result
Your answer: —  Â·  Correct: A
Explanation

Option 1 is not correct. Tide amplification occurs when a bay or gulf narrows landward (a funnel shape) so the incoming tidal wave is constricted and its range increases; classic examples and texts note that funnel-shaped bays magnify tidal magnitudes (e.g., Bay of Fundy) where the mouth is relatively wide and the rear is narrowing, not the reverse [2]. Studies and reviews also state that funneling or converging channels increase tidal wave height and tidal range as the tide propagates into shallower, narrowing basins [3]. Thus gulfs with narrow fronts and wider rears would not generally produce the large tidal amplification described in coastal geography, making statement (1) incorrect.

Sources

  1. [1] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 32: Ocean Movements Ocean Currents And Tides > Characteristics of Tides > p. 508
  2. [2] FUNDAMENTALS OF PHYSICAL GEOGRAPHY, Geography Class XI (NCERT 2025 ed.) > Chapter 13: Movements of Ocean Water > Figure13.2 : Relation between gravitational forces and tides > p. 109
  3. [3] https://os.copernicus.org/preprints/os-2021-98/os-2021-98.pdf
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