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Reflection and Refraction
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Reflection and Refraction

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Questions and Answers

What is total internal reflection (TIR) in physics?

  • When waves arriving at the interface from one medium to another are absorbed by the second medium
  • When waves arriving at the interface from one medium to another are scattered in all directions
  • When waves arriving at the interface from one medium to another are refracted into the second medium
  • When waves arriving at the interface from one medium to another are completely reflected back into the first medium (correct)
  • Under what conditions does total internal reflection occur?

  • When the second medium has a higher wave speed and the waves are incident at a sufficiently oblique angle on the interface (correct)
  • When the first medium has a lower wave speed and the waves are incident at a perpendicular angle on the interface
  • When the first medium has a higher wave speed and the waves are incident at a sufficiently oblique angle on the interface
  • When the second medium has a lower wave speed and the waves are incident at a perpendicular angle on the interface
  • In what situations does total internal reflection occur?

  • With electromagnetic waves such as light and microwaves, and also with other types of waves including sound and water waves (correct)
  • Only with light waves
  • Only with electromagnetic waves such as light and microwaves
  • Only with sound and water waves
  • How is total internal reflection described when the waves are capable of forming a narrow beam?

    <p>In terms of 'rays' rather than waves</p> Signup and view all the answers

    In a medium whose properties are independent of direction, how is total internal reflection described?

    <p>In a medium whose properties are independent of direction, such as air</p> Signup and view all the answers

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