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In a plane electromagnetic wave the elec...

In a plane electromagnetic wave the electric field oscillates sinusoidally at a frequency `3xx10^10Hz` and amplitude `50V//m`. (a) What is the wavelength of the wave? (b) What is the amplitude of the oscillating magnetic field?

Text Solution

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Wavelength, `lambda=c/v=(3xx10^8)/(3xx10^10)=0.01m=1cm`
Amplitude of oscillating magnetic field, `B_0=(E_0)/c=50/(3xx10^8)=1.67xx10^-7T`.
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