JEE MainPhysicsElectromagnetic WavesMCQ+4 / −1
Identify the correct statements from the following descriptions of various properties of electromagnetic waves. (A) In a plane electromagnetic wave electric field and magnetic field must be perpendicular to each other and direction of propagation of wave should be along electric field or magnetic field. (B) The energy in electromagnetic wave is divided equally between electric and magnetic fields. (C) Both electric field and magnetic field are parallel to each other and perpendicular to the direction of propagation of wave. (D) The electric field, magnetic field and direction of propagation of wave must be perpendicular to each other. (E) The ratio of amplitude of magnetic field to the amplitude of electric field is equal to speed of light. Choose the most appropriate answer from the options given below :
- A(D) only
- B(B) and (D) only
- C(B), (C) and (E) only
- D(A), (B) and (E) only
More from Electromagnetic Waves
- Match List-I with List-II : Choose the correct answer from the options given below : Includes table2022 · MCQ
- Given below are two statements : Statement I : A time varying electric field is a source of changing magnetic field and vice-versa. Thus a disturbance in electric or magnetic field creates EM waves. Statement II : In a material medium, the…2022 · MCQ
- Sun light falls normally on a surface of area and exerts an average force of within a time period of 20 minutes. Considering a case of complete absorption, the energy flux of incident…2022 · MCQ
- A radar sends an electromagnetic signal of electric field (E0) = 2.25 V/m and magnetic field (B0) = 1.5 10 8 T which strikes a target on line of sight at a distance of 3 km in a medium. After that, a part of signal (echo)…2022 · MCQ
- An EM wave propagating in x-direction has a wavelength of 8 mm. The electric field vibrating y-direction has maximum magnitude of 60 Vm 1. Choose the correct equations for electric and magnetic fields if the EM wave is propagating in…2022 · MCQ
- Match List - I with List - II : Choose the correct answer from the options given below : Includes table2022 · MCQ
- Nearly 10% of the power of a light bulb is converted to visible radiation. The change in average intensities of visible radiation, at a distance of from the bulb to a distance of is …2022 · Numerical
- The intensity of the light from a bulb incident on a surface is 0.22 W/m2. The amplitude of the magnetic field in this light-wave is 10 9 T. (Given : Permittivity of vacuum 0 = 8.85 10…2022 · Numerical