phucnguyen6194 phucnguyen6194 08-02-2024 Mathematics contestada The magnetic field in a plane em wave is given by B_y = 2 x 10⁻⁷ sin (pi x 10³ x + 3 pi x 10¹¹ t )T Calculate the wavelengthA. πx10³B. 2x10⁻³mC. 2x10³mD. πx10⁻³m