NEET Physics: Electromagnetic Waves — MCQ Test 15

Q6. Which type of electromagnetic waves are produced by bombarding a metal target with high-energy electrons?

Q7. What makes electromagnetic waves capable of carrying energy from one place to another?

Q8. Which type of electromagnetic waves are used in aircraft navigation radar systems?

Q9. What is the nature of the electric and magnetic fields in an electromagnetic wave?

Q10. What is the frequency of an electromagnetic wave with wavelength \( \lambda = 2 \, \text{cm} \) in vacuum? (Given \( c = 3 \times 10^8 \, \text{m/s} \))

NEET Physics — Electromagnetic Waves

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What is the general form of the magnetic field component of a plane electromagnetic wave propagating along the \( z \)-direction?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Physics preparation, focusing specifically on the chapter Electromagnetic Waves. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Magnetic, Component, Electromagnetic, Propagating, Direction, and Wavelength.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. What is the general form of the magnetic field component of a plane electromagnetic wave propagating along the \( z \)-direction?

  • A. \( B_y = B_0 \sin(kz - \omega t) \)
  • B. \( B_y = B_0 \cos(kz + \omega t) \)
  • C. \( B_y = B_0 \sin(\omega t - kz) \)
  • D. \( B_y = B_0 \cos(kz - \omega t) \)

Q2. An electromagnetic wave in vacuum has a wavelength of \( 4 \, \text{m} \). What is its frequency? (Given \( c = 3 \times 10^8 \, \text{m/s} \))

  • A. \( 6 \times 10^7 \, \text{Hz} \)
  • B. \( 7.5 \times 10^7 \, \text{Hz} \)
  • C. \( 9 \times 10^7 \, \text{Hz} \)
  • D. \( 12 \times 10^7 \, \text{Hz} \)

Q3. The amplitude of the electric field in an electromagnetic wave is \( E_0 = 120 \, \text{V/m} \). What is the amplitude of the magnetic field? (Given \( c = 3 \times 10^8 \, \text{m/s} \))

  • A. \( 2 \times 10^{-7} \, \text{T} \)
  • B. \( 3 \times 10^{-7} \, \text{T} \)
  • C. \( 4 \times 10^{-7} \, \text{T} \)
  • D. \( 5 \times 10^{-7} \, \text{T} \)

Q4. An electromagnetic wave has a wave number \( k = 5 \, \text{rad/m} \). What is its wavelength in vacuum?

  • A. 0.63 m
  • B. 1.26 m
  • C. 2.52 m
  • D. 3.14 m

Q5. What property of visible light enables the human eye to differentiate colors?

  • A. Uniform speed
  • B. High energy
  • C. Different wavelengths
  • D. Constant amplitude

+ 5 more questions in the actual test

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