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Geography Optional 300+ Score Pack · Model answer

Discuss the application of Gravity model in Geographical studies.

  • UPSC 2016
  • Models, Theories and Laws

The gravity model is geography's most successful analogue model — it borrows Newton's law of universal gravitation and applies it to spatial interaction, so that flow between two places is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.

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