The magnetic field In a tranvelling dectromagnetic wave has a penk value of `20 n T ` The peak value of electron field strength is :
A
`3 Vm`
B
`6 Vm`
C
`9 Vm`
D
`12 Vm`
Text Solution
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The correct Answer is:
B
from question , ` B_(0) = 20 n T = 20 xx 10^(-9)` `:'` velocity of light in vacume `C = 3 xx 10^(8) ms^(-1))` `barE_(0) =barB_(0) xx barC` `|barE_(0)| =|barB_(0)|, |barC| = 20 xx 10^(-9) xx 3 10^(8)` `= 6 Vm``
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