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Physics - Electromagnetic Waves

Practise 30 COMEDK previous year questions on Electromagnetic Waves, compiled from papers spanning 2012 to 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty COMEDK tests.

Electromagnetic Waves has been asked in 13 of the 15 years of COMEDK papers analysed (2012–2026), with 30 questions in all. 87% of them were easy, 7% moderate and 7% tough. Most of its questions came from 2023, with 5 questions that year. In the last three years (2024–2026) it had 9 questions across 8 papers, about 1.1 per paper.

The chapter's 2 topics are not weighted equally: Electromagnetic Waves and Maxwell's equations (19 questions, 63%) and Electromagnetic Spectrum (11 questions, 37%) have been asked the most. Electromagnetic Waves and Maxwell's equations has also led over the last five years, with 14 questions. Electromagnetic Waves and Maxwell's equations has produced the most tough questions (2).

  1. 1Which of the following is incorrect for displacement current09 May, 2026 (S1)Electromagnetic Waves and Maxwell's equations
  2. 2If is the permeability of free space and permittivity of free space then the dimension for is :09 May, 2026 (S2)Electromagnetic Waves and Maxwell's equations
  3. 3Which of the following is an electromagnetic wave? A. Sound waves B. Alpha rays C. Beta rays D. Gamma rays25 May, 2025 (Shift)Electromagnetic Spectrum
  4. 4The electric and magnetic fields associated with an electromagnetic wave propagating along axis, can be represented by10 May, 2025 (S1)Electromagnetic Waves and Maxwell's equations
  5. 5A plane electromagnetic wave with frequency 40 MHz travels in free space. At a particular point in space and time, the magnetic field is . W10 May, 2025 (S3)Electromagnetic Waves and Maxwell's equations
  6. 6An electromagnetic wave of frequency passes from vacuum into a dielectric medium of relative permittivity 4.0. Then,2024 (Afternoon Shift)Electromagnetic Waves and Maxwell's equations
  7. 7Column - I lists the waves of the electromagnetic spectrum. Column - II gives approximate frequency range of these waves. Match Column - I a2024 (Evening Shift)Electromagnetic Spectrum
  8. 8Electromagnetic waves travel in a medium with a speed of . The relative permeability of the medium is 1 . The value of relative permittivity2024 (Memory Based)Electromagnetic Waves and Maxwell's equations
  9. 9In a plane electromagnetic wave, the electric field oscillates sinusoidally at a frequency of and amplitude . The wavelength of the wave is2024 (Memory Based)Electromagnetic Waves and Maxwell's equations
  10. 10What feature of the infrared waves make it useful for the haze photography?2023 (Evening Shift)Electromagnetic Spectrum
  11. 11The ratio of amplitude of magnetic field to the amplitude of electric field of an electromagnetic wave propagating in vacuum is2023 (Memory Based)Electromagnetic Waves and Maxwell's equations
  12. 12A plane electromagnetic wave of frequency travels through a space along -direction. If the electric field vector at a certain point in space2023 (Memory Based)Electromagnetic Waves and Maxwell's equations
  13. 13A plane electromagnetic wave of frequency travels through a space along -direction. If the electric field vector at a certain point in space2023 (Morning Shift)Electromagnetic Waves and Maxwell's equations
  14. 14The ratio of amplitude of magnetic field to the amplitude of electric field of an electromagnetic wave propagating in vacuum is2023 (Morning Shift)Electromagnetic Waves and Maxwell's equations
  15. 15Speed of electromagnetic wave in a medium having relative permittivity and relative permeability is (speed of light in air,2022Electromagnetic Waves and Maxwell's equations
  16. 16Television frequencies are of the order of , while radio frequencies are of the order of . Using these as typical frequencies, the ratio of 2022Electromagnetic Waves and Maxwell's equations
  17. 17A laser beam has a cross-sectional area of . The magnitude of the maximum electric field in this electromagnetic wave is given by2022Electromagnetic Waves and Maxwell's equations
  18. 18The correct arrangement in increasing order of wavelength of X-rays, UV rays, microwave is2021Electromagnetic Spectrum
  19. 19Which of the following waves are used to treatment of muscles ache?2021Electromagnetic Spectrum
  20. 20Which of the following has/have zero average value in a plane electromagnetic wave?2020Electromagnetic Waves and Maxwell's equations
  21. 21If is permeability of free space and is permittivity of free space, then the speed of light in vacuum is given by2018Electromagnetic Waves and Maxwell's equations
  22. 22- Solar spectrum is an example for2018Electromagnetic Spectrum
  23. 23Blue colour of sea water is due to2018Electromagnetic Spectrum
  24. 24Infrared radiation was discovered in 1800 by2017Electromagnetic Spectrum
  25. 25Clear images of soft tissues can be well studied using2016Electromagnetic Spectrum
  26. 26IR region lies between2016Electromagnetic Spectrum
  27. 27The refractive index and the permeability of a medium are respectively and . The relative permittivity of the medium is nearly2015Electromagnetic Waves and Maxwell's equations
  28. 28The best waves for emission of electrons from a surface are2015Electromagnetic Spectrum
  29. 29For an electromagnetic wave, which of the following statements is true?2014Electromagnetic Waves and Maxwell's equations
  30. 30The carrier of electromagnetic interaction is2012Electromagnetic Waves and Maxwell's equations

Frequently Asked Questions

1.How many questions are available for Electromagnetic Waves?

This chapter includes 30 questions compiled from COMEDK papers spanning 2012 to 2026.

2.Are these questions only from COMEDK, or from other exams too?

These are COMEDK questions specifically for the Electromagnetic Waves chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Electromagnetic Waves an important chapter for COMEDK Physics?

Electromagnetic Waves has appeared in 13 of the 15 years of COMEDK papers covered here, with 30 questions across 20 papers - about 2 per paper it appears in.

4.What is the difficulty level of Electromagnetic Waves questions in COMEDK?

Of the 30 questions analysed for this chapter, 87% are easy, 7% moderate and 7% tough. 2023 had the most, with 5 questions.

5.Which topics in Electromagnetic Waves should I focus on?

These topics have carried the most weightage in Electromagnetic Waves:

  • Electromagnetic Waves and Maxwell's equations - 19 questions (63%)
  • Electromagnetic Spectrum - 11 questions (37%)
  • Electromagnetic Waves and Maxwell's equations has produced the most tough questions (2).
6.Is Electromagnetic Waves's weightage in COMEDK going up or down?

Across all 20 papers analysed, Electromagnetic Waves has averaged about 1.5 questions per paper. In the last three years (2024–2026), that average has fallen, at about 1.1 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.