Question:

The force of cohesion is

Updated On: Jul 29, 2022
  • maximum in solids
  • maximum in liquids
  • maximum in gases
  • same in solid, liquid and gas
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The Correct Option is A

Solution and Explanation

Cohesion or cohesive attraction or cohesive force is the intermolecular attraction between like molecules. Cohesion explains phenomena such as surface tension. It is maximum for solids.
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Concepts Used:

Newtons Law of Gravitation

Gravitational Force

Gravitational force is a central force that depends only on the position of the test mass from the source mass and always acts along the line joining the centers of the two masses.

Newton’s Law of Gravitation:

According to Newton’s law of gravitation, “Every particle in the universe attracts every other particle with a force whose magnitude is,

  • Directly proportional to the product of their masses i.e. F ∝ (M1M2) . . . . (1)
  • Inversely proportional to the square of the distance between their center i.e. (F ∝ 1/r2) . . . . (2)

By combining equations (1) and (2) we get,

F ∝ M1M2/r2

F = G × [M1M2]/r2 . . . . (7)

Or, f(r) = GM1M2/r2 [f(r)is a variable, Non-contact, and conservative force]