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 · 22 Jul · Shift 2 · Q52
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Electromagnetic Waves
  5. /2021 · 22 Jul · Shift 2 · Q52

Electromagnetic Waves question

2021 · 22 Jul · Shift 2 · Q52

JEE MainPhysicsElectromagnetic WavesMCQ+4 / −1
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{\varepsilon _0} = 8.85 \times {10^{ - 12}}{C^2}{N^{ - 1}}{m^{ - 2}}ε0​=8.85×10−12C2N−1m−2)
  1. A
    2.77 ×\times× 10 −-− 8 T
  2. B
    1.96 ×\times× 10 −-− 8 T
  3. C
    8.31 T
  4. D
    5.88 T
PreviousNext

More from Electromagnetic Waves

  • 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
  • A linearly polarized electromagnetic wave in vacuum is E=3.1cos[(1.8)z−(5.4×106)t]iN/C is incident normally on a perfectly reflecting wall at z = a. Choose the correct option2021 · MCQ
  • The electric field in a plane electromagnetic wave is given by E=200cos[(m0.5×103​)x−(1.5×1011srad​×t)]mV​j​…2021 · Numerical
  • A light beam is described by E=800sinω(t−cx​). An electron is allowed to move normal to the propagation of light beam with a speed of 3 × 107 ms − 1. What is the maximum magnetic force…2021 · MCQ