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Edexcel A Level Physics

Topic questions Waves Total internal reflection and optical fibres

Total internal reflection and optical fibres

5 questions · 11 marks · about 15 minutes

Total internal reflection and optical fibres questions

TopicTotal internal reflection and optical fibres

Edexcel 9PH0 Total internal reflection and optical fibres 5 questions

Paper 2: Advanced Physics II June 2025, Question 3 1 mark

Light enters a semicircular glass block, as shown. The ray of light reaches the straight edge of the block at an angle of incidence ฮธ.

The critical angle for glass is c.

Figure for question 3

Which of the following statements for light incident at the straight edge of the block is correct?

Question 3, shown as an image
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Paper 2: Advanced Physics II June 2023, Question 8 1 mark

A ray of light is directed towards a prism as shown. The prism is made from a material with refractive index 1.5

Figure for question 8

Which of the dashed lines best shows the subsequent path of this ray of light?

Question 8, shown as an image
[1]
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Paper 2: Advanced Physics II June 2022, Question 2 1 mark

Light travelling in glass of refractive index ng is incident at a boundary with water of refractive index nw. The critical angle for the boundary is C. Which of the following expressions is correct for this boundary?

Question 2, shown as an image
Question 2, shown as an image
Question 2, shown as an image
Question 2, shown as an image
[1]
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Paper 2: Advanced Physics II June 2022, Question 8 1 mark

Total internal reflection occurs when light is incident on the boundary between medium 1 and medium 2, as shown.

Figure for question 8

The refractive index of medium 1 is n1 and the refractive index of medium 2 is n2. The critical angle for the boundary is C.

Which row of the table is correct?

Figure for question 8
[1]
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