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Electromagnetic Waves: JEE Mains 2022 June 29 Shift 1

Medium· Properties of electromagnetic waves· +4 / 0
The intensity of the light from a bulb incident on a surface is 0.22 W m−20.22\ \text{W m}^{-2}. The amplitude of the magnetic field in this light-wave is ______ ×10−9 T\times10^{-9}\ \text{T}. (Given: Permittivity of vacuum ϵ0=8.85×10−12 C2N−1m−2\epsilon_0=8.85\times10^{-12}\ \text{C}^2\text{N}^{-1}\text{m}^{-2}, speed of light in vacuum c=3×108 m s−1c=3\times10^8\ \text{m s}^{-1})
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