Electric field of plane electromagnetic wave propagating through a non-magnetic medium is given by E = 20cos(2 × 10¹⁰ t - 200x) V/m. The dielectric constant of the medium is equal to: (Take μ r = 1)

Electromagnetic Waves: JEE Main 2021 Physics question

JEE Main 2021 · 1 Sep, Evening shift · Q6783

JEE Main 20211 Sep, Evening shiftPhysicsMediumElectromagnetic Waves120× since 2002

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

\mu

_r = 1)