Electromagnetic Waves — JEE Main PYQs & Practice Questions

Electromagnetic Waves is a Physics chapter in the JEE Main syllabus. This page brings together 140 previous-year and practice questions on Electromagnetic Waves, organised into 4 topics: Maxwell's Equations, Properties of EM Waves, Displacement Current and Electromagnetic Spectrum. Most questions come with a step-by-step solution you can work through free in PrepWiser.

Download Electromagnetic Waves JEE Main PYQs as a free PDF (with answer key)

Revise this chapter: Revision notes · Formula sheet

Chapter weightage: how many questions each chapter had per shift in the 2024–26 papers.

Maxwell's Equations

• Match List I with List II List - I | List - II; (A) | ∮ B⃗ · d l⃗=μₒ i_c+μₒ εₒ (d…
• Match List - I with List - II. List - I Relation | List - II Law; A. | ∮ E⃗· dl⃗=-d/dt∮…
• Maxwell's equations predict that the speed of EM waves in vacuum equals 1/√μ₀ε₀.
• Which of the following Maxwell's equation is valid for time varying conditions but not…
• Gauss's law for magnetism states that the net magnetic flux through any closed surface is:
• The source of time varying magnetic field may be (A) a permanent magnet (B) an electric…

Properties of EM Waves

• The electric field in an electromagnetic wave is given by E = (50 NC⁻¹) sinω (t - x/c)…
• A plane electromagnetic wave propagates along the + x direction in free space. The…
• Due to presence of an em-wave whose electric component is given by E=100 sin (ω t-k x)…
• Average force exerted on a non-reflecting surface at normal incidence is 2.4 × 10⁻⁴ N…
• The energy density associated with electric field E⃗ and magnetic field B⃗ of an…
• The electric field of an electromagnetic wave travelling through a medium is given by…
• If the magnetic field in a plane electromagnetic wave is given by B⃗ = 3 × 10⁻⁸ sin(1.6…
• A plane electromagnetic wave is moving in free space with velocity c=3× 10⁸ m/s and its…
• In an electromagnetic wave the electric field vector and magnetic field vector are given…
• A plane electromagnetic wave propagating in x-direction is described by E_y=(200 Vm⁻¹)…
• The electric field in a plane electromagnetic wave is given by E⃗ = 200 cos [ ( (0.5 ×…
• Electric field in a plane electromagnetic wave is given by E = 50 sin(500x - 10 × 10¹⁰…
• A plane electromagnetic wave of frequency 500 MHz is travelling in vacuum along…
• Given below are two statements : Statement I : Electromagnetic waves are not deflected…
• A plane electromagnetic wave of frequency 25 GHz is propagating in vacuum along the…
• A plane electromagnetic wave of frequency 20 MHz travels in free space along the +x…
• The magnetic field of a plane electromagnetic wave is B⃗ = 3 × 10⁻⁸sin [ 200π ( y + ct )…
• The electric fields of two plane electromagnetic plane waves in vacuum are given by E₁⃗…
• Given below are two statements: Statement I: Electromagnetic waves carry energy as they…
• In a plane electromagnetic wave, the directions of electric field and magnetic field are…

Displacement Current

• Which one of the following is not a measurable quantity?
• A displacement current of 4.0 A can be set up in the space between two parallel plates…
• A parallel plate capacitor has a capacitance C=200 pF. It is connected to 230 V ac…
• An alternating voltage of amplitude 40 V and frequency 4 kHz is applied directly across…
• Seawater at a frequency f = 9 × 10² Hz, has permittivity ε = 80ε₀ and resistivity ρ =…
• The displacement current in Maxwell's equations arises from:
• The displacement current of 4.425 μA is developed in the space between the plates of…
• If ε₀ denotes the permittivity of free space and Φ_E is the flux of the electric field…
• A parallel plate capacitor of area A=16 cm² and separation between the plates 10 cm , is…
• A time varying potential difference is applied between the plates of a parallel plate…
• An electromagnetic wave of frequency 100 MHz propagates through a medium of…
• AC voltage V(t) = 20 sinωt of frequency 50 Hz is applied to a parallel plate capacitor…

Electromagnetic Spectrum

• Red light differs from blue light as they have :
• Match List I with List II of Electromagnetic waves with corresponding wavelength range…
• Choose the correct option relating wave lengths of different parts of electromagnetic…
• Match List - I with List - II : List - I | List - II; (a) | UV rays | (i) | Diagnostic…
• Which is the correct ascending order of wavelengths?
• Match List I with List II : List I | List II; A. | Microwaves | I. | Radio active decay…
• Match List I with List II : LIST I EM-Wave | LIST II Wavelength Range; A. | Infra-red |…
• Arrange the following in the ascending order of wavelength: A. Gamma rays (λ₁) B. x -…
• The correct match between the entries in column I and column II are : I | II ; Radiation…
• If a source of electromagnetic radiation having power 15 kW produces 10¹⁶ photons per…
• Which EM wave has the shortest wavelength?
• Match List I with List II List I | List II; (A) | Gauss's law of magnetostatics | (I) |…
• Match the LIST-I with LIST-II List-I | List-II; A. | Radio-wave | I. | is produced by…
• Match List - I with List - II. List I | List II; (a) | Source of microwave frequency |…
• Match List I with List II LIST I | LIST II ; A. | Microwaves | I. | Physiotherapy; B. |…
• Microwaves are commonly used for:
• Arrange the following in the ascending order of wavelength (λ) : (A) Microwaves (λ₁) (B)…
• Given below are two statements: one is labelled as Assertion A and the other is labelled…

More Physics chapters

• Basic Mathematics for Physics
• Units, Dimensions & Errors
• Rectilinear Motion
• Vectors
• Projectile Motion & Relative Motion
• Newton's Laws of Motion
• Friction
• Circular Motion
• Work, Energy & Power
• Centre of Mass & Linear Momentum
• Collision
• Rotational Motion
• Gravitation
• Simple Harmonic Motion
• Elasticity
• Fluid Mechanics
• Surface Tension
• Thermometry & Calorimetry
• Kinetic Theory of Gases
• Thermodynamics
• Heat Transfer
• Mechanical Waves
• Sound Waves
• Experimental Skills
• Electrostatics I — Charges, Field & Gauss's Law
• Electrostatics II — Potential & Capacitance
• Current Electricity
• Moving Charges & Magnetism
• Magnetism & Matter
• Electromagnetic Induction
• Alternating Current
• Ray Optics
• Wave Optics
• Dual Nature of Radiation & Matter
• Atomic Physics
• Nuclear Physics
• Semiconductors & Electronic Devices
• Communication Systems

Frequently asked questions

How many Electromagnetic Waves questions are there for JEE Main?

PrepWiser has 140 Electromagnetic Waves questions for JEE Main, grouped into 4 topics such as Maxwell's Equations, Properties of EM Waves and Displacement Current.

Are these Electromagnetic Waves questions from previous-year JEE Main papers?

Yes — most are genuine previous-year questions from past JEE Main papers, and the rest are practice questions written to match the JEE Main pattern and difficulty.

Where can I see the answers and solutions to these Electromagnetic Waves questions?

Open any Electromagnetic Waves question in PrepWiser (it is free) to attempt it; most come with a step-by-step solution.