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Concepts Of Physics MCQ Edition [Volume 1]PhysicsSome Mechanical Properties of Matter

Fundamentally, the force of viscosity is

Options

  1. Aweak
  2. Belectromagnetic
  3. Cnuclear
  4. Dgravitational

Correct answer

B. electromagnetic

Step-by-step solution

Viscosity is the internal friction of a fluid that arises due to intermolecular forces between the adjacent layers of the fluid. Intermolecular forces, such as van der Waals forces, hydrogen bonding, and dipole-dipole interactions, are fundamentally caused by the electric and magnetic interactions between the charged particles (electrons and protons) within the atoms and molecules. Therefore, the force of viscosity is fundamentally electromagnetic in nature.

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