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Physics - Electromagnetic Waves

Practise 80 AP EAMCET previous year questions on Electromagnetic Waves, compiled from papers spanning 2002 to 2025. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty AP EAMCET tests.

Electromagnetic Waves has been asked in 15 of the 24 years of AP EAMCET papers analysed (2001–2024), with 80 questions in all. 75% of them were easy, 19% moderate and 6% tough. Most of its questions came from 2022, with 13 questions that year. In the last three years (2022–2024) it had 30 questions across 28 papers, about 1.1 per paper.

The chapter's 3 topics are not weighted equally: Electromagnetic Waves and Maxwell's equations (62 questions, 78%), X-Rays (9 questions, 11%), and Electromagnetic Spectrum (9 questions, 11%) have been asked the most. Electromagnetic Waves and Maxwell's equations has also led over the last five years, with 36 questions. Electromagnetic Waves and Maxwell's equations has produced the most tough questions (4).

  1. 1If the magnetic field in a plane progressive wave is represented by the equation , then the frequency of the wave is (In the equation time t26 May, 2025 (M)Electromagnetic Waves and Maxwell's equations
  2. 2The minimum wavelength of X-rays produced by 20 kV electrons is nearly26 May, 2025 (M)X-Rays
  3. 3If a 10 W bulb emits electromagnetic waves uniformly in all directions, then the intensity of light at a distance 0.5 m from the source is n26 May, 2025 (E)Electromagnetic Waves and Maxwell's equations
  4. 4The oscillating electric and magnetic field vectors of an electromagnetic wave are along24 May, 2025 (M)Electromagnetic Waves and Maxwell's equations
  5. 5The ratio of the magnitudes of the electric field and times the magnetic field of a plane electromagnetic wave is23 May, 2025 (M)Electromagnetic Waves and Maxwell's equations
  6. 6The waves having maximum wavelength among the following electromagnetic waves is23 May, 2025 (E)Electromagnetic Spectrum
  7. 7The magnitude of the electric field of a plane electromagnetic wave travelling in free space is . If and are respectively permeability and p22 May, 2025 (M)Electromagnetic Waves and Maxwell's equations
  8. 8If the rms value of the electric field of electromagnetic waves at a distance of 3 m from a point source is , then the power of the source i22 May, 2025 (E)Electromagnetic Waves and Maxwell's equations
  9. 9In a plane electromagnetic wave, the magnetic field is given by , then the wavelength of the wave is (In the equation is in metre and is in 21 May, 2025 (M)Electromagnetic Waves and Maxwell's equations
  10. 10A plane electromagnetic wave of frequency 25 MHz propagates in vaccum along positive x -direction. At a particular point in space and time, 21 May, 2025 (E)Electromagnetic Waves and Maxwell's equations
  11. 11For plane electromagnetic waves propagating in the positive Z - direction. The combination which gives the correct possible direction for an23 May, 2024 (M)Electromagnetic Waves and Maxwell's equations
  12. 12The structure of solids is investigated by using22 May, 2024 (M)X-Rays
  13. 13Which of the following produces electromagnetic waves21 May, 2024 (M)Electromagnetic Waves and Maxwell's equations
  14. 14When a wave enters into a rarer medium from a denser medium, the property of the wave which remains constant is21 May, 2024 (E)Electromagnetic Waves and Maxwell's equations
  15. 15The rms value of the electric field of an electromagnetic wave emitted by a source is . The average energy density of the electromagnetic wa21 May, 2024 (E)Electromagnetic Waves and Maxwell's equations
  16. 16The average value of electric energy density in an electromagnetic wave is. [where is peak value]20 May, 2024 (M)Electromagnetic Waves and Maxwell's equations
  17. 17Magnetic field at a distance of r from z axis is present in the region. ' ', is constant and ' t ' is time. The magnitude of induced electri19 May, 2024 (E)Electromagnetic Waves and Maxwell's equations
  18. 18An electromagnetic wave travel in a medium with a speed of . The relative permeability of the medium is 1 . Then the relative permitivity is19 May, 2024 (E)Electromagnetic Waves and Maxwell's equations
  19. 19The Solar Radiation is18 May, 2024 (M)Electromagnetic Spectrum
  20. 20If and are the magnitudes of the electric and magnetic fields respectively of an electromagnetic wave in vacuum, then among the following th18 May, 2023 (M)Electromagnetic Waves and Maxwell's equations
  21. 21The frequency of a light ray is . Its frequency when it propagates in a medium of refractive index 1.5, will be17 May, 2023 (M)Electromagnetic Waves and Maxwell's equations
  22. 22The electric field in of an electromagnetic wave is . The average energy density of the electromagnetic wave due to the electric field is17 May, 2023 (M)Electromagnetic Waves and Maxwell's equations
  23. 23An electric charge oscillating harmonically with frequency produces electromagnetic waves of frequency (Speed of light in vacuum is )17 May, 2023 (E)Electromagnetic Waves and Maxwell's equations
  24. 24If and are the electric and magnetic field vectors of an electromagnetic wave, then the direction of propagation of the electromagnetic wave16 May, 2023 (M)Electromagnetic Waves and Maxwell's equations
  25. 25When a metal target is bombarded with high energy electrons, the electromagnetic waves generated are16 May, 2023 (E)Electromagnetic Spectrum
  26. 26The relation between permittivity of free space, the permeability of free space and speed of light is15 May, 2023 (E)Electromagnetic Waves and Maxwell's equations
  27. 27The device used to detect infrared radiations is15 May, 2023 (E)Electromagnetic Spectrum
  28. 28In a plane electromagnetic wave, the maximum value of the electric field component is . The intensity of the wave is nearly08 Jul, 2022 (M)Electromagnetic Waves and Maxwell's equations
  29. 29If the amplitude of the magnetic field in a travelling plane electromagnetic wave is , then the intensity of the wave is nearly08 Jul, 2022 (M)Electromagnetic Waves and Maxwell's equations
  30. 30The correct ascending order of the wavelengths of the following electromagnetic waves is Ultraviolet, X-rays, infrared, gamma rays and visib08 Jul, 2022 (E)Electromagnetic Spectrum
  31. 31The equation that represents magnetic field of a plane electromagnetic wave which is propagating along -direction with wavelength and maximu07 Jul, 2022 (M)Electromagnetic Waves and Maxwell's equations
  32. 32In a plane electromagnetic wave and are average energy densities of electric field and magnetic field respectively, then the correct option 07 Jul, 2022 (E)Electromagnetic Waves and Maxwell's equations
  33. 33Light of wavelength belongs to the following class of waves07 Jul, 2022 (E)Electromagnetic Spectrum
  34. 34Among the following the incorrect Maxwells Electromagnetic equation is06 Jul, 2022 (M)Electromagnetic Waves and Maxwell's equations
  35. 35The magnetic field in a plane electromagnetic wave is given as The electric field of this wave is given as05 Jul, 2022 (M)Electromagnetic Waves and Maxwell's equations
  36. 36A plane electromagnetic wave of frequency travels in free space. If the average energy densities in the electric field and magnetic field ar05 Jul, 2022 (E)Electromagnetic Waves and Maxwell's equations
  37. 37The correct order of electromagnetic waves with increasing frequency is05 Jul, 2022 (E)Electromagnetic Spectrum
  38. 38A plane electromagnetic wave travels in free space along z - axis. At a particular point in space, the electric field along x -axis is 8 . 704 Jul, 2022 (M)Electromagnetic Waves and Maxwell's equations
  39. 39If the average power per unit area delivered by an electromagnetic wave is 9240 W m - 2 , then the amplitude of the oscillating magnetic fie04 Jul, 2022 (M)Electromagnetic Waves and Maxwell's equations
  40. 40The electric field E and magnetic field B of an electromagnetic wave passing through vacuum are given by E = E 0 sin k x - t B = B 0 sin k x04 Jul, 2022 (E)Electromagnetic Waves and Maxwell's equations
  41. 41Which one of the following is the property of a monochromatic, plane electromagnetic wave in free space?25 Aug, 2021 (M)Electromagnetic Waves and Maxwell's equations
  42. 42Suppose that the electric field of an electromagnetic wave in vacuum is . What is the wavelength ?24 Aug, 2021 (M)Electromagnetic Waves and Maxwell's equations
  43. 43The electric and the magnetic fields associated with an electromagnetic wave propagating along the Z- axis, can be represented by20 Aug, 2021 (M)Electromagnetic Waves and Maxwell's equations
  44. 44The shortest wavelength of X -rays emitted from an X -ray tube depends upon20 Aug, 2021 (E)X-Rays
  45. 45The law which states that a variation in an electric field causes magnetic field , is19 Aug, 2021 (M)Electromagnetic Waves and Maxwell's equations
  46. 46The magnetic field of a plane electromagnetic wave is given by B = ( 400 T ) sin 4 . 0 x 10 15 s - 1 t - x c Average energy density correspo19 Aug, 2021 (E)Electromagnetic Waves and Maxwell's equations
  47. 47An accelerated electric charge emits07 Oct, 2020 (Special)Electromagnetic Waves and Maxwell's equations
  48. 48W. K. Roentgen discovered23 Sep, 2020 (M)X-Rays
  49. 49Light is an electromagnetic wave. Its speed in vacuum is given by the expression22 Sep, 2020 (E)Electromagnetic Waves and Maxwell's equations
  50. 50If a source is transmitting electromagnetic wave of frequency \(8.2 10^6 {~Hz}\), then wavelength of the electromagnetic waves transmitted f21 Sep, 2020 (M)Electromagnetic Waves and Maxwell's equations

Frequently Asked Questions

1.How many questions are available for Electromagnetic Waves?

This chapter includes 80 questions compiled from AP EAMCET papers spanning 2002 to 2025.

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

These are AP EAMCET 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 AP EAMCET Physics?

Electromagnetic Waves has appeared in 16 of the 25 years of AP EAMCET papers covered here, with 80 questions across 70 papers - about one per paper it appears in.

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

Of the 80 questions analysed for this chapter, 75% are easy, 19% moderate and 6% tough. 2022 had the most, with 13 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 - 62 questions (78%)
  • X-Rays - 9 questions (11%)
  • Electromagnetic Spectrum - 9 questions (11%)
  • Electromagnetic Waves and Maxwell's equations has produced the most tough questions (4).
6.Is Electromagnetic Waves's weightage in AP EAMCET going up or down?

Across all 70 papers analysed, Electromagnetic Waves has averaged about 1.1 questions per paper. In the last three years (2022–2024), that average has stayed about the same, 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.