Question

The resultant electric field of a wave with Ex = 3 and Ey = 4 will be (a) 7 (b) 1 (c) 25 (d) 5 This question was addressed to me in a national level competition. My doubt is from S and P Polarised Waves topic in division EM Wave Propagation of Electromagnetic Theory Select the correct answer from above options Electromagnetic Theory questions and answers, Electromagnetic Theory questions pdf, Electromagnetic Theory question bank, Electromagnetic Theory questions and answers pdf, mcq on Electromagnetic Theory pdf,electromagnetic theory book pdf,electromagnetic theory pdf notes,electromagnetic theory lecture notes,electromagnetic theory of light,maxwell electromagnetic theory,electromagnetic theory proposed by,electromagnetic theory engineering physics,electromagnetic theory nptel

Answer 1

The correct option is (d) 5 For explanation: The resultant electric field of two electric components Ex and Ey is E = √(Ex^2 + Ey^2). On substituting for Ex = 3 and Ey = 4, we get E = 5 units.