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:

Options

A. `1.52 xx 10^(-8) Wb // m^(2)`
B. `1.52 xx 10^(-7) Wb // m^(2)`
C. `1.6 xx 10^(-6) Wb // m^(2)`
D. `1.6 xx 10^(-7) Wb // m^(2)`

Answer

C

Explanation

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