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A plane Electromagnetic Wave of frequency \mathrm{30 \mathrm{MHz}} travels in free space along the \mathrm{x}-direction. The electric field component of the wave at a particular point of space and time E=6 \mathrm{Vm}^{-1} along \mathrm{y}-direction. Its magnetic field component \mathrm{B} at this point would be

Option: 1

2 \times 10^{-8} \mathrm{~T} \text { along } z \text {-direction }


Option: 2

6 \times 10^{-8} \mathrm{~T} \text { along } x \text {-direction }


Option: 3

2 \times 10^{-8} \mathrm{~T} \text { along } y \text {-direction }


Option: 4

6 \times 10^{-8} \mathrm{~T} \text { along } z \text {-direction }


Answers (1)

The frequency of Electromagnetic Wave along y-direction
\mathrm{\mathrm{v}=30 \mathrm{MHz} }
The electric field component of the wave along y direction.
\mathrm{E=6 \mathrm{Vm}^{-1} }

In Electromagnetic, the ratio of the amplitudes of electric and magnetic field is always constant and it is equal to velocity of the Electromagnetic Waves.
 

Posted by

Sumit Saini

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