Questions
If the magnetic field of a plane electromagnetic wave is given by then the speed of the wave is
detailed solution
Correct option is B
Given equation is B=5×10-6sin(0.6×102x+0.5×1010t)TComparing the given equation with the equation of B=B0sin(Kx+ωt)Then K=0.6×102m−1 and ω=0.5×1010rad/sSpeed of the wave is V=ωK=0.5×10100.6×102=56×108 ⇒V=0.83×108m/sSimilar Questions
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