1.

In a plane e.m. wave, the electric field oscillates sinusoidally at a frequency of 2.5 xx 10^(10) Hz and amplitude 480V // m. The amplitude of oscillating magnetic field will be:

Answer»

`1.52 XX 10^(-8) Wb // m^(2)`
`1.52 xx 10^(-7) Wb // m^(2)`
`1.6 xx 10^(-6) Wb // m^(2)`
`1.6 xx 10^(-7) Wb // m^(2)`

SOLUTION :`C=(E_(0))/(B_(0))`
`:. B_(0)=(E_(0))/(C)=1.6 xx 10^(-6) Wb // m^(2)`


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