In a plane electromagnetic wave propagating in + ve y direction, the electric field oscillates sinusoidally at a frequency `2xx10^(10)` Hz and amplitude 48 V/m. The amplitude of oscillating magnetic field will be:

Options

A. `(1)/(16) xx 10^(-8) Wb//m^(2)`
B. `16 xx 10^(-8) Wb//m^(2)`
C. `12 xx 10^(-7) Wb//m^(2)`
D. `(1)/(12) xx 10^(-7) Wb//m^(2)`

Answer

B

Explanation

Oscillating magnetic field `B= (E )/(c )= (48)/(3 xx 10^(8)) = 16 xx 10^(-8) Wb//m^(2)`