MEDIUM
NEET
IMPORTANT
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In an electromagnetic wave, E=1.2sin(2×106t-kx) N C-1. Find the value of intensity of magnetic field.

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Important Questions on Electromagnetic Waves

MEDIUM
NEET
IMPORTANT
A point source of power 15 W is placed at a certain point in the space. The amplitude of magnetic field at a distance of 2 meter from source is,
EASY
NEET
IMPORTANT
In EM wave, E=50sin(ωt-kx). If μ=4μ0 and ε=ε0, then average power per unit area is,
MEDIUM
NEET
IMPORTANT
If H=-2cosωt-kzi^ in an EM wave propagating along +Z-axis, then electric field is given by,
MEDIUM
NEET
IMPORTANT
The electromagnetic wave of intensity 1400 W m-2 falls on the metal surface on area 1.5 m2 is completely absorbed by it. Find out the force exerted by the beam.
MEDIUM
NEET
IMPORTANT
A plane electromagnetic wave of frequency 40 MHz travels in free space in the X-direction. At some point and at some instant, the electric field E has its maximum value of 750 N C-1 in Y-direction. The wavelength of the wave is,
EASY
NEET
IMPORTANT
A plane electromagnetic wave of frequency 40 MHz travels in free space in the X-direction. At some point and at some instant, the electric field E has its maximum value of 750 N C-1 in Y-direction. The period of the wave will be,
EASY
NEET
IMPORTANT
A plane electromagnetic wave of frequency 40 MHz travels in free space in the X-direction. At some point and at some instant, the electric field E has its maximum value of 750 N C-1 in Y-direction. The angular frequency of e.m.f. wave will be (in rad s-1),
HARD
NEET
IMPORTANT
A plane electromagnetic wave of frequency 40 MHz travels in free space in the X-direction. At some point and at some instant, the electric field E has its maximum value of 750 N C-1 in Y-direction. The propagation constant of the wave will be,