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Electromagnetic Waves

Get chapter-wise JEE Main & Advanced questions with solutions

Q JEE MAIN 2019
An electromagnetic wave is represented by the electric field $\overrightarrow{\mathbf{E}}=\mathrm{E}_0 \hat{n} \sin [\omega t+(6 y-8 z)]$. Taking unit vectors in $x, y$ and $z$ directions...
JEE Main Physics Hard
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Q JEE-MAIN 2019
A light wave is incident normally on a glass slab of refractive index 1.5. If 4% of light gets reflected and the amplitude of the...
JEE Main Physics Easy
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Q JEE MAIN_2019_
The electric field of a plane electromagnetic wave is given by $$ \overline{\mathrm{E}}=\mathrm{E}_0 \hat{\mathrm{i}} \cos (\mathrm{kz}) \cos (\omega \mathrm{t}) $$ The corresponding magnetic field $\bar{B}$...
JEE Main Physics Easy
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Q JEE MAIN 2019
A plane electromagnetic wave having a frequency $v=23.9 \mathrm{GHz}$ propagates along the positive z-direction in free space. The peak value of the electric field is...
JEE Main Physics Hard
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Q JEE MAIN 2019
The mean intensity of radiation on the surface of the Sun is about $10^8 \mathrm{~W} / \mathrm{m}^2$. The rms value of the corresponding magnetic field...
JEE Main Physics Easy
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Q JEE MAIN 2020
Suppose that intensity of a laser is $\left(\frac{315}{\pi}\right) \mathrm{W} / \mathrm{m}^2$. The rms electric field, in units of $\mathrm{V} / \mathrm{m}$ associated with this source...
JEE Main Physics Medium
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Q JEE MAIN 2020
For a plane electromagnetic wave, the magnetic field at a point x and time t is
JEE Main Physics Easy
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Q JEE MAIN 2019
An electromagnetic wave of intensity $50 \mathrm{Wm}^{-2}$ enters in a medium of refractive index ' $n$ ' without any loss. The ratio of the magnitudes...
JEE Main Physics Medium
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Q JEE Main 2019
If the magnetic field of a plane electromagnetic wave is given by (The speed of light $=3 \times 10^8 \mathrm{~m} / \mathrm{s}$ ) B =...
JEE Main Physics Easy
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Q JEE MAIN 2020
Choose the correct option relating wavelengths of different parts of electromagnetic wave spectrum
JEE Main Physics Easy
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