Physics - EM Waves Question with Solution | TestHub

Given here, $E_y=540\sin \pi \times {10}^4\left(x-ct\right) \mathrm{V} {\mathrm{m}}^{-1}$

Here, peak value of electric field, $E_0=540 \mathrm{V} {\mathrm{m}}^{-1}$

Using relation between magnetic and electric field, 

Peak value of magnetic field is $B_0=\frac{E_0}{c}=\frac{540}{3\times {10}^8}=18\times {10}^{-7} \mathrm{T}$