In an electromagnetic wave, the electric field oscillated sinusoidally with amplitude 45 Vm-1, the rms value of oscillating magnetic field will be

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1.6×10-8T

16×10-9T

144×10-8T

11.3×10-8T

answer is D.

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Detailed Solution

B0=E0c=483×108=16×10-8TBrms=B02=16×10-82=82×10-8T=11.3×10-8T

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