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Electromagnetic Waves Questions

Practice 21 Electromagnetic Waves questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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21
Total Questions
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5
Easy
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15
Medium
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1
Hard
Practice by Exam:Physics(20)PHYSICS(1)

About Electromagnetic Waves — practice questions, PYQs & concepts

Electromagnetic Waves is a frequently-tested topic on Physics, PHYSICS. ExamTest.live currently lists 21 Electromagnetic Waves questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year — every answer key is free, no sign-up required.

Electromagnetic Waves weight in competitive exams

Across our Electromagnetic Waves question bank, the largest sources are Physics (20) and PHYSICS (1). Click any exam chip above to drill down to that exam-specific question set.

How to use this page

  • Start easy: 5 easy Electromagnetic Waves questions are available — build fluency before moving up.
  • Target weak years: Use the year filter to focus on the most recent 2026 paper or older PYQs you have not attempted.
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  • Read every explanation: Even on questions you got right — the explanation often surfaces a faster approach you can reuse.

All Electromagnetic Waves Questions(1–21 of 21)

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Q1mediummcqPhysicsAIEEE 20042026
50% accuracy
An electromagnetic wave of frequency passes from vacuum into a dielectric medium with permittivity . Then:
Q2mediummcqPhysicsAIEEE 20062026
0% accuracy
The rms value of the electric field of the light coming from the Sun is . The average total energy density of the electromagnetic wave is:
Q3mediummcqPhysicsNEET (UG) 20172026
0% accuracy
In an electromagnetic wave in free space the root mean square value of the electric field is . The peak value of the magnetic field is:
Q4mediummcqPHYSICSNEET 20192026
For a transparent medium relative permeability and permittivity, and are and respectively. The velocity of light in this medium would be:
Q5mediummcqPhysicsAIEEE 20122026
An electromagnetic wave in vacuum has the electric and magnetic fields and , which are always perpendicular to each other. The direction of polarization is given by and that of wave propagation by . Then:
Q6mediummcqPhysicsNEET 20232026
In a plane electromagnetic wave travelling in free space, the electric field component oscillates sinusoidally at a frequency of and amplitude . Then the amplitude of the oscillating magnetic field is (Speed of light in free space ):
Q7mediummcqPhysicsNEET 20222026
Match List - I with List – II regarding electromagnetic waves and their characteristic wavelengths.
image
Q8easymcqPhysicsNEET 20222026
The energy that will be ideally radiated by a transmitter in is:
Q9mediummcqPhysicsNEET 20222026
When light propagates through a material medium of relative permittivity , and relative permeability , the velocity of light, is given by ( - velocity of light in vacuum):
Q10mediummcqPhysicsNEET 20212026
For a plane electromagnetic wave propagating in -direction, which one of the following combination gives the correct possible directions for electric field () and magnetic field () respectively?
Q11mediummcqPhysicsNEET 20212026
A capacitor of capacitance is connected across an AC source of voltage , given by . The displacement current between the plates of the capacitor, would then be given by:
Q12easymcqPhysicsNEET 2020 E12026
The ratio of contributions made by the electric field and magnetic field components to the intensity of an electromagnetic wave is: ( =speed of electromagnetic waves)
Q13mediummcqPhysicsNEET (UG) 20182026
An em wave is propagating in a medium with a velocity . The instantaneous oscillating electric field of this em wave is along axis. Then the direction of oscillating magnetic field of the em wave will be along:
Q14mediummcqPhysicsNEET 20172026
In an electromagnetic wave in free space the root mean square value of the electric field is . The peak value of the magnetic field is:
Q15mediummcqPhysicsPhysics
3% accuracy
The electric field in a plane electromagnetic wave is given by . Then expression for the corresponding magnetic field is:
Q16easymcqPhysicsPhysics
0% accuracy
If λv, λx andλm represent the wavelengths of visible light, X-rays and microwaves respectively, then :
Q17hardmcqPhysicsPhysics
A resistance and a capacitor of reactance are connected in series across a source. When the capacitor is charged, the peak value of the displacement current is:
Q18easymcqPhysicsPhysics
Out of the following options which one can be used to produce a propagating electromagnetic wave?
Q19mediummcqPhysicsPhysics
The energy of the em waves is of the order of . To which part of the spectrum does it belong?
Q20easymcqPhysicsPhysics
The pressure exerted by an electromagnetic wave of intensity on a nonreflecting surface is [ is the velocity of light]:
Q21mediummcqPhysicsPhysics
If λv, λx and λm represent the wavelengths of visible light, X-rays and microwaves respectively, which of the following relations is correct ?

Frequently Asked Questions

How many Electromagnetic Waves questions are on ExamTest.live?▼
We have 21 Electromagnetic Waves questions spread across 1 pages, covering easy, medium, and hard difficulty levels with detailed explanations.
Are Electromagnetic Waves MCQs free?▼
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Which exams include Electromagnetic Waves questions?▼
Electromagnetic Waves questions are commonly asked in Physics, PHYSICS. You can filter by exam using the links above.
How do I practice Electromagnetic Waves questions effectively?▼
Start with easy questions to build confidence, then tackle medium and hard ones. Use the filter buttons to sort by difficulty. Reveal the answer only after attempting each question, and read the explanation thoroughly.