Electromagnetic Waves questions
212 published questions with worked solutions.
- Electric field of plane electromagnetic wave propagating through a non-magnetic medium is given by E=20 (2 10^ 10 t-200x)V/m. The...
- The electric field intensity produced by the radiation coming from a 100 W bulb at a distance of 3m is E. The electric field...
- Seawater at a frequency f = 9 10^2 Hz, has permittivity =80 _0 and resistivity = 0.25 . Imagine a parallel plate capacitor is...
- A plane electromagnetic wave propagating along y-direction can have the following pair of electric field ( E ) and magnetic field...
- In an electromagnetic wave the electric field vector and magnetic field vector are given as E =E_0 i and B =B_0 k respectively....
- AC voltage V(t) = 20 sin of frequency 50 Hz is applied to a parallel plate capacitor. The separation between the plates is 2 mm...
- at 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...
- Match List-I with List-II : List-I: (a) Source of microwave frequency (b) Source of infrared frequency (c) Source of Gamma Rays...
- An electromagnetic wave of frequency 3 GHz enters a dielectric medium of relative electric permittivity 2.25 from vacuum. The...
- An electromagnetic wave of frequency 5 GHz, is travelling in a medium whose relative electric permittivity and relative magnetic...
- If _ v , _ x and _ m represent the wavelengths of visible light, X-rays and microwaves respectively, then :
- The relative permittivity of distilled water is 81. The velocity of light in it will be : (Given _r = 1)
- A plane electromagnetic wave with frequency of 30 MHz travels in free space. At particular point in space and time, electric...
- The electric field in an electromagnetic wave is given by E = (50 NC^ -1 ) sin (t –x/c) The energy contained in a cylinder of...
- The peak electric field produced by the radiation coming from the 8 W bulb at a distance of 10 m is x 10 _0c V m . The efficiency...
- A radiation is emitted by 1000 W bulb and it generates an electric field and magnetic field at P, placed at a distance of 2 m....
- A plane electromagnetic waves travels in a medium of relative permeability 1.61 and relative permittivity 6.44. If magnitude of...
- An electric bulb is rated as 200 W. What will be the peak magnetic field at 4 m distance produced by the radiations coming from...
- Light wave traveling in air along x-direction is given by E_y = 540 sin 10^ 4 (x − ct) Vm^ -1 . Then, the peak value of magnetic...
- The electromagnetic waves travel in a medium at a speed of 2.0 10^ 8 m/s. The relative permeability of the medium is 1.0. The...
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