The electric field in a plane electromagnetic wave is given by \(E_z = 60\cos(5x + 1.5\times10^9 t)\,V/m\). Then expression for the corresponding magnetic field is (here subscripts denote the direction of the field) :
EM waves, characteristics and transverse nature
Every question from past board papers on EM waves, characteristics and transverse nature, newest paper first. Open any question for its full worked answer.
NEET UG 2025 question paper (official, booklet 45)
Full paper →NEET UG 2024 question paper (official, booklet S6)
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The property which is not of an electromagnetic wave travelling in free space is that :
NEET UG 2023 question paper (official, booklet G6)
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In a plane electromagnetic wave travelling in free space, the electric field component oscillates sinusoidally at a frequency of \(2.0\times10^{10}\,\mathrm{Hz}\) and amplitude \(48\,\mathrm{V\,m^{-1}}\). Then the amplitude of oscillating magnetic field is : (Speed of light in free space \(= 3\times10^{8}\,\mathrm{m\,s^{-1}}\))
NEET UG 2022 question paper (official, booklet R6)
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When light propagates through a material medium of relative permittivity \(\epsilon_r\) and relative permeability \(\mu_r\), the velocity of light, \(v\) is given by : (c - velocity of light in vacuum)
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The energy that will be ideally radiated by a 100 kW transmitter in 1 hour is :
NEET UG 2021 question paper (official, booklet M4)
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For a plane electromagnetic wave propagating in x-direction, which one of the following combination gives the correct possible directions for electric field (E) and magnetic field (B) respectively ?
NEET UG 2020 question paper (official, booklet E1)
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The ratio of contributions made by the electric field and magnetic field components to the intensity of an electromagnetic wave is : (c = speed of electromagnetic waves)
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Light with an average flux of 20 W/cm\(^2\) falls on a non-reflecting surface at normal incidence having surface area 20 cm\(^2\). The energy received by the surface during time span of 1 minute is :
NEET UG 2018 question paper (official, booklet EE)
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An em wave is propagating in a medium with a velocity \(\vec V=V\hat i\). The instantaneous oscillating electric field of this em wave is along +y axis. Then the direction of oscillating magnetic field of the em wave will be along
NEET UG 2017 question paper (official, booklet B)
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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 the magnetic field is :
NEET UG 2016 Phase 1 question paper (official, booklet A)
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Out of the following options which one can be used to produce a propagating electromagnetic wave ?