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Electromagnetic Waves question

2021 · 1 Sep · Shift 2 · Q64
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  5. /2021 · 1 Sep · Shift 2 · Q64

Electromagnetic Waves question

2021 · 1 Sep · Shift 2 · Q64

JEE MainPhysicsElectromagnetic WavesMCQ+4 / −1
Electric field of plane electromagnetic wave propagating through a non-magnetic medium is given by E = 20cos(2 ×\times× 1010 t −-− 200x) V/m. The dielectric constant of the medium is equal to : (Take μ\muμ r = 1)
  1. A
    9
  2. B
    2
  3. C
    13{1 \over 3}31​
  4. D
    3
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