everyday science MCQ #49461

Total internal reflection occurs when light travels from a denser medium to a less dense medium and the angle of incidence exceeds:

everyday science MCQ #49461

  1. Question 1

    Q1. Total internal reflection occurs when light travels from a denser medium to a less dense medium and the angle of incidence exceeds:

    • A) The angle of reflection
    • B) The critical angle
    • C) The angle of refraction
    • D) The Brewster angle

    Answer: The critical angle

    Explanation: Total internal reflection occurs when light in a denser medium strikes the boundary with a less dense medium at an angle of incidence greater than the critical angle, causing all the light to be reflected back rather than refracted.