PHY · PHY-2023-CG3-025Physics
In a plane electromagnetic wave travelling in free space, the electric field component oscillates sinusoidally at a frequency of 2.0 × 10¹⁰ Hz and amplitude 48 V m⁻¹. Then the amplitude of oscillating magnetic field is (Speed of light in free space = 3 × 10⁸ m s⁻¹)