Electromagnetic Waves questions
212 published questions with worked solutions.
- The electric and the magnetic field associated with an e.m. wave, propagating along the +z-axis, can be represented by :
- The decreasing order of wavelength of infrared, microwave, ultraviolet and gamma rays is :
- The ratio of amplitude of magnetic field to the amplitude of electric field for an electromagnetic wave propagating in vacuum is...
- The electric field associated with an e.m. wave in vacuum is given by E = i ,40 (kz - 6 10^ 8 t), where E, z and t are in volt/m,...
- Out of the following options which one can be used to produce a propagating electromagnetic wave?
- In an electromagnetic wave in free space the root mean square value of the electric field is E_ rms = 6 V/m . The peak value of...
- An em wave is propagating in a medium with a velocity V = V i . The instantaneous oscillating electric field of this em wave is...
- Which colour of the light has the longest wavelength?
- A parallel plate capacitor with plate area A and plate separation d is charged by constant current I. A plane surface of area A 2...
- The voltage between the plates of a parallel plate capacitor of capacity 1 is changing at the rate of 4 V/s , the displacement...
- An electromagnetic wave with frequency ω and wavelength λ travels in the +y direction. Its magnetic field is along +x-axis. The...
- A radio transmitter transmits at 830kHz. At a certain distance from the transmitter magnetic field has amplitude 4.82 10^ -11 T....
- The frequency of X-rays; γ-rays and ultraviolet rays are respectively a, b and c then
- An electromagnetic wave in vacuum has the electric and magnetic fields E and B, which are always perpendicular to each other. The...
- The magnetic field in a travelling electromagnetic wave has a peak value of 20 nT. The peak value of electric field strength is :
- Photons of an electromagnetic radiation has an energy 11keV each. To which region of electromagnetic spectrum does it belong ?
- A plane electromagnetic wave in a non-magnetic dielectric medium is given by E = E_0 (4 10^ -7 x - 50t ) with distance being in...
- During the propagation of electromagnetic wave in a particular medium :-
- Match List I (Wavelength range of electromagnetic spectrum) with List II (Method of production of these waves) and select the...
- An electromagnetic wave of frequency 1 10^ 14 hertz is propagating along z-axis. The amplitude of electric field is 4 V/m. If _0...
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