Electromagnetic Waves JEE Main PYQs PDF, 2020–2026

Electromagnetic Waves questions per year

Topic-wise weightage by year

How many Electromagnetic Waves questions each topic had in every JEE Main year (all shifts), counting every question asked, including ones not in the PDF. Darker cells mean more questions.

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Newest questions (2026)

The 12 newest of the 18 JEE Main 2026 Electromagnetic Waves questions in the free PDF, latest shift first.

1. JEE Main 2026 · 6 Apr · Shift 1 · Properties of EM Waves

   A point light source emits E.M. waves in free space. A detector, placed at a distance of $L{\ \mathrm{m}}$, measures the intensity as $I_{{{\mathrm{o}}}}$. The detector is now shifted to another location on the same spherical surface ensuring the angle between original location and new location as ${45}^{{\circ}}$. The measured intensity at new location will be $\_\_\_\_$ .

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2. JEE Main 2026 · 6 Apr · Shift 2 · Properties of EM Waves

   For an electromagnetic wave propagating through vacuum, ${\vec{k}},{\vec{E}}$ and $\omega$ represent propagation vector, electric field and angular frequency, respectively. The magnetic field associated with this wave is represented by:

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3. JEE Main 2026 · 5 Apr · Shift 1 · Displacement Current

   A displacement current of 4.0 A can be set up in the space between two parallel plates of $6\mu{\ \mathrm{F}}$ capacitor. The rate of change of potential difference across the plates of the capacitor is nearly $\alpha\times {10}^{6}{\ \mathrm{V}}/{\mathrm{s}}$. The value of $\alpha$ is $\_\_\_\_$ .

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4. JEE Main 2026 · 5 Apr · Shift 2 · Properties of EM Waves

   Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

   Assertion (A) : The electromagnetic wave exerts pressure on the surface on which they are allowed to fall.

   Reason (R) : There is no mass associated with the electromagnetic waves.

   In the light of the above statements, choose the correct answer from the options given below :

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5. JEE Main 2026 · 4 Apr · Shift 2 · Properties of EM Waves

   A magnetic field vector in an electromagnetic wave is represented by ${\vec{B}}=B_{0}\sin \left(2\pi vt-\frac{2\pi x}{\lambda}\right){\hat{j}}$. Its associated electric field vector is $\_\_\_\_$ .

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6. JEE Main 2026 · 2 Apr · Shift 1 · Properties of EM Waves

   An electromagnetic wave travelling in x-direction is described by field equation

   $E_{y}=300\sin \omega\left(t-\frac{x}{c}\right)$.

   If the electron is restricted to move in y-direction only with speed of $1.5\times {10}^{6}$ m/s then ratio of maximum electric and magnetic forces acting on the electron is ______.

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7. JEE Main 2026 · 2 Apr · Shift 2 · Properties of EM Waves

   An electromagnetic wave travels in free space along the x-direction. At a particular point in space and time, ${\vec{B}}=2\times {10}^{{-7}}{\hat{j}}$ T is associated with this wave. The value of corresponding electric field ${\vec{E}}$ at this point is _______ V/m.

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8. JEE Main 2026 · 28 Jan · Shift 1 · Properties of EM Waves

   The electric field of an electromagnetic wave travelling through a medium is given by ${\vec{E}}(x,t)=25\sin \left(2.0\times {10}^{{15}}t-{10}^{7}x\right){\hat{n}}$ then the refractive index of the medium is $\_\_\_\_$ .

   (All given measurement are in SI units)

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9. JEE Main 2026 · 28 Jan · Shift 2 · Properties of EM Waves

   A plane electromagnetic wave is moving in free space with velocity $c=3\times {10}^{8}$ m/s and its electric field is given as ${\vec{E}}=54\sin (kz-\omega t)\;{\hat{j}}$ V/m, where ${\hat{j}}$ is the unit vector along y-axis. The magnetic field vector ${\vec{B}}$ of the wave is :

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10. JEE Main 2026 · 28 Jan · Shift 2 · Displacement Current

    Which one of the following is not a measurable quantity?

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11. JEE Main 2026 · 24 Jan · Shift 1 · Electromagnetic Spectrum

    \text { Match the LIST-I with LIST-II }

    List-I		List-II
    A.	Radio-wave	I.	is produced by Magnetron valve
    B.	Micro-wave	II.	due to change in the vibrational modes of atoms
    C.	Infrared-wave	III.	due to inner shell electrons moving from higher energy level to lower energy level
    D.	X-ray	IV.	due to rapid acceleration of electrons

    Choose the correct answer from the options given below:

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12. JEE Main 2026 · 23 Jan · Shift 1 · Maxwell's Equations

    $\text{ Match List - I with List - II.}$

    List - I Relation		List - II Law
    A.	$\oint {\vec{E}}\cdot \overrightarrow{dl}=-\frac{d}{dt}\oint {\vec{B}}\cdot \overrightarrow{da}$	I.	Ampere's circuital law
    B.	$\oint {\vec{B}}\cdot \overrightarrow{dl}=\mu_{0}\left(I+\epsilon_{0}\frac{d\phi_{E}}{dt}\right)$	II.	Faraday's laws of electromagnetic induction
    C.	$\oint {\vec{E}}\cdot \overrightarrow{da}=\frac{1}{\epsilon_{0}}\int_{{{\mathrm{v}}}}\rho{\mathrm{dv}}$	III.	Ampere - Maxwell law
    D.	$\oint {\vec{B}}\cdot \overrightarrow{dl}=\mu_{0}I$	IV.	Gauss's law of electrostatics

    Choose the correct answer from the options given below :

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