Electromagnetic Waves Important Questions for NEET 2025 PDF

Electromagnetic Waves Important Questions for NEET : Electromagnetic waves are an important topic in the NEET Physics syllabus . These waves, which include light waves, radio waves, and X-rays, play a crucial role in various natural and technological processes. Understanding this topic thoroughly can help students solve questions in the NEET 2025 exam and improve their overall scores.

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Electromagnetic Waves Important Questions for NEET Overview

Electromagnetic waves are waves that can travel through the vacuum of space and do not require any medium to propagate. These waves consist of oscillating electric and magnetic fields that are perpendicular to each other and to the direction of wave propagation.

In NEET, questions related to electromagnetic waves often test concepts like the wave's properties, the electromagnetic spectrum, and their practical applications. Having a strong grip on this topic can help students answer such questions confidently.

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What are Electromagnetic Waves?

Electromagnetic waves are waves that consist of oscillating electric and magnetic fields, which are perpendicular to each other and to the direction of wave propagation. These waves do not require a medium to travel and can move through the vacuum of space. Common examples of electromagnetic waves include light, microwaves, infrared radiation, ultraviolet radiation, X-rays, and gamma rays. The speed of electromagnetic waves in a vacuum is approximately 3 x 10⁸ m/s, which is the speed of light.

Practice Questions for Electromagnetic Waves for NEET

Here we have provided some sample questions for practice. Students can also download the PDF of practice questions for this chapter.

Q1 If electric field E = E0 sin(ωt - kz) î and magnetic field B = B0 sin(ωt - kz) ĵ, then electromagnetic wave travels along

1. +z direction
2. -y direction
3. +x direction
4. +y direction

Q2 Displacement current can be expressed as (symbols have their usual meanings)

1. ε0 dϕE/dt
2. dϕE/dt
3. μ0ε0 dϕE/dt
4. 1/μ0ε0 dϕE/dt

Q3 At a particular instant, the current in the circuit given below is i. The displacement current between the plates of the capacitor shown below is

1. Zero
2. i
3. i/2
4. i/4

Q4 All components of the electromagnetic spectrum in vacuum have the same;

1. energy
2. velocity
3. wavelength
4. frequency

Q5 Light is an electromagnetic wave. Its speed in vacuum is given by the expression

1. √(μ0ε0)
2. μ0/ε0
3. √(ε0/μ0)
4. 1/√(μ0ε0)

Q6 The electric field in an electromagnetic wave was found to oscillate with an amplitude of 36 Vm⁻¹. The amplitude of the oscillating magnetic field is,

1. 6 × 10⁻⁸ T
2. 12 × 10⁻⁸ T
3. 18 × 10⁻⁸ T
4. 20 × 10⁻⁸ T

Q7 The wavelength of the oscillatory magnetic field in a plane electromagnetic wave given by

By = 0.6 × 10⁻⁵ sin(4000πx - 5 × 10¹⁰πt) T is (where x is in meter and t is in second)

1. 0.4 × 10⁻³ m
2. 0.2 × 10⁻³ m
3. 0.5 × 10⁻³ m
4. 0.3 × 10⁻³ m

Q8 An EM wave is passed through a region containing both electric and magnetic field then which of the following statements is correct?

1. It is deflected by both electric and magnetic field.
2. It is deflected by an electric field but not by the magnetic field.
3. It is not deflected by an electric field but deflected by a magnetic field.
4. It is neither deflected by an electric field nor by a magnetic field.

Electromagnetic Waves Important Questions for NEET PDF

Physics Wallah is providing a PDF for the chapter Electromagnetic Waves important questions under the Prachand NEET Batch 2025 . This PDF includes answer keys along with detailed explanations, helping students enhance their understanding of the topic and practice effectively for the NEET exam. Moreover, students can scan the QR code provided in the PDF to view the solutions for each question for a more in-depth learning experience.

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