Electromagnetic Waves Overview
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Questions and Answers

What effect describes the rotation of the plane of polarization caused by a strong magnetic field?

  • Compton effect
  • Photoelectric effect
  • Doppler effect
  • Faraday effect (correct)
  • According to Maxwell's theory, which fields are involved in electromagnetic waves?

  • Gravitational and electric fields
  • Electric and magnetic fields (correct)
  • Magnetic field only
  • Electric field only
  • What is the velocity of electromagnetic waves in a vacuum?

  • $3 imes 10^{8} m s^{-1}$
  • $1 imes 10^{9} m s^{-1}$
  • $3 imes 10^{10} m s^{-1}$ (correct)
  • $5 imes 10^{10} m s^{-1}$
  • What does the equation $E_{0} = c B_{0}$ represent?

    <p>The relationship between electric and magnetic field amplitudes</p> Signup and view all the answers

    Which of the following statements is true about electromagnetic waves?

    <p>They do not require a medium for propagation.</p> Signup and view all the answers

    What does the symbol $ u$ represent in the equations for electromagnetic waves?

    <p>Speed of the wave</p> Signup and view all the answers

    Who proposed the theory that a changing electric field produces a magnetic field?

    <p>James Clerk Maxwell</p> Signup and view all the answers

    In the equation $c= rac{1}{ ext{sqrt}(eta_0 ext{mu}_0)}$, what do $eta_0$ and $ ext{mu}_0$ represent?

    <p>Permittivity and permeability of free space</p> Signup and view all the answers

    ফারাডের প্রভাবের সাথে সম্পর্কিত কি?

    <p>শক্তিশালী চৌম্বক ক্ষেত্র দীপ্তিকে প্রভাবিত করে</p> Signup and view all the answers

    ম্যাক্সওয়েলের তত্ত্ব অনুসারে বিদ্যুতের এবং চৌম্বক ক্ষেত্রের মধ্যে সম্পর্ক কি?

    <p>দুটি ক্ষেত্র পরস্পরের প্রতি ঝোঁক থাকে</p> Signup and view all the answers

    ইলেকট্রোম্যাগনেটিক তরঙ্গের গতি নির্ধারণের জন্য কোন সূত্র ব্যবহৃত হয়?

    <p>$c = rac{1}{ ext{sqrt}(eta_{0} eta_{1})}$</p> Signup and view all the answers

    আলোক তরঙ্গ এবং চৌম্বক ক্ষেত্রের তরঙ্গ কী ধরনের তরঙ্গ?

    <p>আবদ্ধ তরঙ্গ</p> Signup and view all the answers

    বিদ্যুত এবং চৌম্বক ক্ষেত্রের মধ্যে সম্পর্কের সমীকরণ কি?

    <p>$E_{0} = c B_{0}$</p> Signup and view all the answers

    ইলেকট্রোম্যাগনেটিক তরঙ্গের গতি কেমন?

    <p>$3 imes 10^{10} m/s$</p> Signup and view all the answers

    কিসের মাধ্যমে একটি পরিবর্তিত বৈদ্যুতিক ক্ষেত্র একটি চৌম্বক ক্ষেত্র তৈরি করে?

    <p>ফারাডের আইন</p> Signup and view all the answers

    ম্যাক্সওয়েল কবে বৈদ্যুতিক এবং চৌম্বক ক্ষেত্রের সম্পর্ক প্রস্তাব করেছিলেন?

    <p>1864</p> Signup and view all the answers

    Study Notes

    Electromagnetic Waves

    • Electromagnetic waves were discovered in 1845.
    • A changing magnetic field produces an electric field.
    • A changing electric field produces a magnetic field.
    • Light is a form of electromagnetic radiation.
    • Electromagnetic waves are transverse waves.
    • The electric and magnetic fields are perpendicular to each other and to the direction of wave propagation.
    • The speed of electromagnetic waves in a vacuum is 3 x 1010 ms-1.
    • The equation for the speed of light is c =(1/(ε0μ0))1/2 where ε0 is the permittivity of free space and μ0 is the permeability of free space.
    • ε0 = 8.85 x 10-12 coul2 N-1 m-2
    • μ0 = 4π x 10-7 NA-2
    • Equation for the electric field: E = E0 sin(2π(vt - x)/λ)
    • Equation for the magnetic field: B= B0 sin(2π(vt - x)/λ)
    • E0 and B0 represent the maximum amplitudes of the electric and magnetic fields respectively.

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    Description

    This quiz covers the fundamental concepts of electromagnetic waves, including their properties and equations. Discover how changing electric and magnetic fields relate to wave propagation and the speed of light. Test your knowledge on the principles of electromagnetic radiation and its historical significance.

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