How are microwaves produced?
- ABy the oscillation of electrons in special vacuum tubes like klystrons, magnetrons, and Gunn diodes.
- BBy the vibration of atoms and molecules.
- CBy the transition of electrons between energy levels in atoms.
- DBy the deceleration of high-speed electrons hitting a metal target.
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Similar Questions
The electric field component of a monochromatic radiation is given by
$\vec E = 2E_0 \hat i \cos kz \cos \omega t$
Its magnetic field $\vec B$ is then given by
$\vec E = 2E_0 \hat i \cos kz \cos \omega t$
Its magnetic field $\vec B$ is then given by
DifficultJEE MAIN 2017
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The amplitude of the magnetic field part of a harmonic electromagnetic wave in vacuum is $B_0 = 510 \; nT$. What is the amplitude of the electric field (in $N/C$) part of the wave?
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