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Concepts Of Physics MCQ Edition [Volume 1]PhysicsLight Waves

The speed of light is dependent

Options

  1. Aon both elasticity and inertia
  2. Bexclusively on the inertia of the medium
  3. Cexclusively on the elasticity of the medium
  4. Don neither elasticity nor inertia

Correct answer

D. on neither elasticity nor inertia

Step-by-step solution

Light is an electromagnetic wave and does not require any material medium for its propagation. The propagation of mechanical waves depends on the properties of the medium such as elasticity and inertia. Since light is a non-mechanical wave, its speed does not depend on the elasticity and inertia of the medium. The speed of light in a vacuum is given by c = 1 ₀ ₀ and in a medium by v = 1 , where and are the magnetic permeability and electric permittivity of the medium. Therefore, the speed of light depends on neithe

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