In a plane of electromagnetic wave, the electric field oscillates sinusoidally at a frequency of `2 xx 10^(10)Hz` and amplitude `48Vm^(-1)`. The amplitude of oscillating magnetic field will be

Options

A. `16 xx 10^(-8)Wbm^(-2)`
B. `12 xx 10^(-8)Wbm^(-2)`
C. `18 xx 10^(-5)Wbm^(-2)`
D. `2.0 xx 10^(-6)Wbm^(-2)`

Answer

A

Explanation

`B= (E )/(C )= 16 xx 10^(-8) Wbm^(-2)`