એક સમતલ E M તરંગ x-દિશામાં પ્રસરે છે. તે | vedclass

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Question

$\mathrm{E}=\mathrm{BC} \Rightarrow 60=\mathrm{B} 	imes 3 	imes 10^8$

$\Rightarrow \mathrm{B}=2 	imes 10^{-7}$

$	ext { Also } \mathrm{C}=\ma

Vedclass · Accepted Answer

$\mathrm{B}_z=2 	imes 10^{-7} \sin \left[\frac{\pi}{2} 	imes 10^3\left(\mathrm{x}-3 	imes 10^8 \mathrm{t}ight)ight] \hat{\mathrm{kT}}$

Vedclass · Answer

$\mathrm{E}=\mathrm{BC} \Rightarrow 60=\mathrm{B} 	imes 3 	imes 10^8$

$\Rightarrow \mathrm{B}=2 	imes 10^{-7}$

$	ext { Also } \mathrm{C}=\mathrm{f} \lambda$

$\Rightarrow 3 	imes 10^8=\mathrm{f} 	imes 4 	imes 10^{-3}$

$\Rightarrow \mathrm{f}=\frac{3}{4} 	imes 10^{11}$

$\Rightarrow \omega=2 \pi \mathrm{f}=\frac{3}{4} 	imes 2 \pi 	imes 10^{11}$

$\Rightarrow \omega=\frac{\pi}{2} 	imes 10^3 \mathrm{C}$

$\Rightarrow \quad 	ext { Electric field } \Rightarrow \mathrm{y} 	ext { direction }$

$	ext { Propagation } \Rightarrow \mathrm{x} 	ext { direction }$

$	ext { Magnetic field } \Rightarrow z 	ext {-direction }$

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