mcq on class 12 physics chapter 8 em waves

MCQs on Class 12 Physics Chapter 8 Electromagnetic Waves Q.1. In electromagnetic waves the phase difference between electric and magnetic field vectors are(a) zero(b) 𝜋/4(c) 𝜋/2(d) π Answer Answer: (a) Electric and magnetic field vectors always vary in same phase. Q.2. Which of the following has minimum wavelength? (a) Blue light(b) γ-rays(c) infrared rays(d) microwave Answer Answer: … Read more