Electromagnetic Waves questions
212 published questions with worked solutions.
- The magnetic field in a traveling electromagnetic wave has a peak value of 20 nT. The peak value of electric field strength is -
- The electric field a plane electromagnetic wave is given by : E_y = 69 [0.6 10^3 x - 1.8 10^ 11 t] V/m. The expression for...
- An electromagnetic wave of frequency 100 MHz propagates through a medium of conductivity, = 10 mho/m. The ratio of maximum...
- The electric field of a plane electromagnetic wave, travelling in an unknown non-magnetic medium is given by, E_y = 20 (3 10^6x -...
- A laser beam has intensity of 4.0 10^ 14 W/m². The amplitude of magnetic field associated with beam is ____ T. (Take _0=8.85 10^...
- The ratio of speeds of electromagnetic waves in vacuum and a medium, having dielectric constant k = 3 and permeability of = 2 _0,...
- The electric field of an electromagnetic wave travelling through a medium is given by E (x,t) = 25 (2.0 10^ 15 t - 10^7x) n then...
- A plane electromagnetic wave is moving in free space with velocity c = 3 10^8 m/s and its electric field is given as E =54 (kz-...
- A parallel plate capacitor of area A = 16 cm^2 and separation between the plates 10 cm, is charged by a DC current. Consider a...
- A plane electromagnetic wave of frequency 20 MHz travels in free space along the +x direction. At a particular point in space and...
- A time varying potential difference is applied between the plates of a parallel plate capacitor of capacitance 2.5 . The...
- The electric field of an electromagnetic wave in free space is E = 57 [7.5 10^6 t - 5 10^ -3 (3x+4y)](4 i -3 j ) N/C. The...
- Arrange the following in the ascending order of wavelength ( ) : (A) Microwaves ( _1) (B) Ultraviolet rays ( _2) (C) Infrared...
- Due to presence of an em-wave whose electric component is given by E = 100 sin( t–kx) NC^ -1 , a cylinder of length 200 cm holds...
- The magnetic field of an E.M. wave is given by B = ( 3 2 i + 1 2 j )30 [ (t- z c ) ] (S.I. Units) The corresponding electric...
- Given below are two statements : one is labelled as Assertion (A) and other is labelled as Reason (R). Assertion (A) :...
- A plane electromagnetic wave propagates along the + x direction in free space. The components of the electric field, E and...
- The unit of 2I _0 c is : (I = intensity of an electromagnetic wave, c : speed of light)
- Match List-I (Electromagnetic wave type) with List-II (Its association/application) and select the correct option from the...
- During the propagation of electromagnetic waves in a medium -
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