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A plane electromagnetic wave of frequenc...

A plane electromagnetic wave of frequency 20 MHz travels through a space along x-direction. If the electric field vector at a certain point in space is `6V m^(-1)`, what is the magnetic field vector at that point ?

A

`2 xx 10^(-3) T`

B

`(1)/(2) xx 10^(-8) T`

C

2T

D

`(1)/(2) T`

Text Solution

Verified by Experts

The correct Answer is:
A
The magnetic field `B=(E)/(c)` where `c=3 xx 10^(8) m // s`
`B=(6)/(3 xx 10^(8))=2 xx 10^(-8) T`
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