Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Electromagnetic Waves question

2021 · 18 Mar · Shift 1 · Q49
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Electromagnetic Waves
  5. /2021 · 18 Mar · Shift 1 · Q49

Electromagnetic Waves question

2021 · 18 Mar · Shift 1 · Q49

JEE MainPhysicsElectromagnetic WavesMCQ+4 / −1
A plane electromagnetic wave of frequency 100 MHz is travelling in vacuum along the x-direction. At a particular point in space and time, B→=2.0×10−8k^T\overrightarrow B = 2.0 \times {10^{ - 8}}\widehat kTB=2.0×10−8kT. (where, k^\widehat kk is unit vector along z-direction) What is E→\overrightarrow EE at this point?
  1. A
    0.6 j^\widehat jj​ V/m
  2. B
    6.0 k^\widehat kk V/m
  3. C
    6.0 j^\widehat jj​ V/m
  4. D
    0.6 k^\widehat kk V/m
PreviousNext

More from Electromagnetic Waves

  • A plane electromagnetic wave propagating along y-direction can have the following pair of electric field (E) and magnetic field (B) components.2021 · MCQ
  • In an electromagnetic wave the electric field vector and magnetic field vector are given as E=E0​i and B=B0​k respectively. The direction of propagation of electromagnetic wave…2021 · MCQ
  • Intensity of sunlight is observed as 0.092 Wm − 2 at a point in free space. What will be the peak value of magnetic field at the point? (ε0​=8.85×10−12C2N−1m−2)2021 · MCQ
  • An electromagnetic wave of frequency 5 GHz, is travelling in a medium whose relative electric permittivity and relative magnetic permeability both are 2. Its velocity in this medium is ​× 107 m/s.2021 · Numerical
  • Match List - I with List - II. Choose the correct answer from the options given below : Includes table2021 · MCQ
  • An electromagnetic wave of frequency 3 GHz enters a dielectric medium of relative electric permittivity 2.25 from vacuum. The wavelength of this wave in that medium will be ​× 10 − 2 cm.2021 · Numerical
  • The peak electric field produced by the radiation coming from the 8W bulb at a distance of 10 m is 10x​πμ0​c​​mV​. The efficiency of the bulb is 10% and it is a point source. The value of x…2021 · Numerical
  • The wavelength of an X-ray beam is 10 Ao​. The mass of a fictitious particle having the same energy as that of the X-ray photons is 3x​h kg. The value of x is ​. (h = Planck's constant)2021 · Numerical