Electromagnetic Waves and Ampère's Law
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Questions and Answers

At what angle does the refracted light ray move parallel to the boundary?

  • θ2 = 90° (correct)
  • θ2 = θc
  • θ1 = θc
  • θ1 = 90°

    • What is the condition for total internal reflection to occur?

  • n1 is greater than n2 (correct)
  • n1 is not related to n2
  • n1 is equal to n2
  • n1 is less than n2

    • What is the critical angle θc?

  • The angle of incidence when the refracted ray is parallel to the boundary (correct)
  • The angle of incidence when the refracted ray is at 45° to the boundary
  • The angle of incidence when the refracted ray is perpendicular to the boundary
  • The angle of incidence when the refracted ray is at 30° to the boundary

    • What happens to the refracted rays when n1 is greater than n2?

    <p>They are bent away from the normal</p> Signup and view all the answers

    What is the condition for Snell's law of refraction to be used?

    <p>n1 is greater than n2</p> Signup and view all the answers

    What happens to light rays with angles of incidence greater than θc?

    <p>They are entirely reflected at the boundary</p> Signup and view all the answers

    What is the purpose of using Snell's law of refraction in the example?

    <p>To find the critical angle for an air-water boundary</p> Signup and view all the answers

    What is the refractive index of water in the example?

    <p>1.33</p> Signup and view all the answers

    What is the relation between θ1 and θc when using Snell's law of refraction?

    <p>θ1 is equal to θc</p> Signup and view all the answers

    What is the angle between the incident white light and the most intense returning violet ray?

    <p>40°</p> Signup and view all the answers

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