In a place e.m. wave, the electric field oscillates sinusoidally at a frequency of $$2.5$$×$$1010Hz$$ and amplitude $$480Vm$$−$$1$$. The amplitude of oscillating magnetic field will be :

Correct option is 31.6×10−6Wbm−2

Questions

In a place e.m. wave, the electric field oscillates sinusoidally at a frequency of $2.5 \times 10^{10} Hz$ and amplitude $480 {Vm}^{- 1} .$ The amplitude of oscillating magnetic field will be :

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1.52×10−8Wbm−2

1.52×10−7Wbm−2

1.6×10−6Wbm−2

1.6×10−7Wbm−2

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detailed solution

Correct option is C

C=E0B0B0=E0C=1.6×10−6Wbm−2

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In a place e.m. wave, the electric field oscillates sinusoidally at a frequency of 2.5×1010Hz and amplitude 480Vm−1. The amplitude of oscillating magnetic field will be :

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In a place e.m. wave, the electric field oscillates sinusoidally at a frequency of $2.5 \times 10^{10} Hz$ and amplitude $480 {Vm}^{- 1} .$ The amplitude of oscillating magnetic field will be :