Which of the following statements is INCORRECT regarding the Coriolis force?

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SSC CHSL Exam 2024 Tier-I Official Paper (Held On: 02 Jul, 2024 Shift 3)
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  1. It deflects the wind to the right in the north and left in the south.
  2. It is absent at the equator. 
  3. Deflection is less when the speed of wind is high.
  4. It is directly proportional to the angle of altitude

Answer (Detailed Solution Below)

Option 3 : Deflection is less when the speed of wind is high.
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SSC CHSL Exam 2023 Tier-I Official Paper (Held On: 02 Aug 2023 Shift 1)
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Detailed Solution

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The correct answer is Deflection is less when the wind is high.

Key Points

  • The Coriolis force is an apparent force caused by the Earth's rotation.
  • It deflects the wind to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.
  • It is absent at the equator because the Coriolis effect is zero there.
  • The Coriolis force is proportional to the speed of the moving object and the sine of the latitude.
  • Deflection is actually more when the wind speed is high, not less.

Additional Information

  • The Coriolis force affects the direction of ocean currents and wind patterns, playing a crucial role in weather systems and climate.
  • It is named after Gaspard-Gustave de Coriolis, a French scientist who described the effect in the 19th century.
  • The Coriolis force is taken into account in meteorology, aviation, and oceanography for accurate predictions and navigation.
  • In the absence of the Coriolis force, atmospheric and oceanic circulations would be significantly different, impacting the global climate system.
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