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AP EAMCET202022 Sep 2020Evening ShiftPhysicsElectromagnetic WavesActual

Light is an electromagnetic wave. Its speed in vacuum is given by the expression

Options

  1. A₀ ₀
  2. B₀ ₀
  3. C₀ ₀
  4. D1 ₀ ₀

Correct answer

D. 1 ₀ ₀

Step-by-step solution

Speed of light (EM wave) in vacuum or air is given as c= 1 ₀ ₀ where, ₀= permeability of free space and ₀= permittivity of free space.

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