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EasyRe-NEET 2026
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An electromagnetic wave travelling in a lossless dielectric medium having a dielectric constant εr = 9, has the electric field, Ex = E₀ sin (kz − 2π × 10⁶t) Vm⁻¹ where E₀ is the amplitude and k is the wave vector. Among the following options, the incorrect choice is :
A
The speed of the electromagnetic wave inside the medium is 10⁸ ms⁻¹
B
The wavelength of the electromagnetic wave inside the medium is 300 m
C
The magnetic field is given by the relation By = B₀/v sin (kz − 2π × 10⁶t) where v is the speed of the electromagnetic wave inside the medium
D
The direction of propagation of the electromagnetic wave is along +z
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