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प्रश्न
The electric and magnetic fields of an electromagnetic wave are ______.
विकल्प
in phase and perpendicular to each other
out of phase and not perpendicular to each other
in phase and not perpendicular to each other
out of phase and perpendicular to each other
उत्तर
The electric and magnetic fields of an electromagnetic wave are in phase and perpendicular to each other.
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संबंधित प्रश्न
Write any two important properties of electromagnetic waves.
Suppose that the electric field part of an electromagnetic wave in vacuum is
`vec"E" = {(3.1"N"/"C") cos[(1.8 ("rad")/"m")"y" + (5.4 xx 10^8 ("rad")/"s")"t"]}hat"i"`
(a) What is the direction of propagation?
(b) What is the wavelength λ?
(c) What is the frequency v?
(d) What is the amplitude of the magnetic field part of the wave?
(e) Write an expression for the magnetic field part of the wave.
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Fraunhofer lines are an example of _______ spectrum.
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The magnetic field of a plane electromagnetic wave travelling in +ve z-direction is described by ______.
An EM wave radiates outwards from a dipole antenna, with E0 as the amplitude of its electric field vector. The electric field E0 which transports significant energy from the source falls off as ______.
