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Cambridge IGCSE Physics practice

Which of the following statements is true about the critical angle?

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MCQ

Type

cambridge_mcq

Style

Topic

Refraction of light

Exam-style question

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Which of the following statements is true about the critical angle?.

  1. A.It is the same for all materials
  2. B.It can be zero
  3. C.It depends on the refractive indices of the materials
  4. D.It only applies to light

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Paper 3 structured question: Refraction of light

Paper 3Theory (Core)1 marks

Description

Critical Angle Scenario

When light travels from water (n=1.33) to air (n=1.00), it can undergo total internal reflection if the angle of incidence is greater than the critical angle.

  1. a

    State the critical angle for light traveling from water to air.

    Aim for approximately 1 distinct marking point.

    [1]