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3.2.2 Refraction of light

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Question 39

The speed of light in air is 3.0 × 108 m/s.

The critical angle for light in a sample of optical glass placed in air is 41∘41^{\circ}41∘.

What is the speed of light in this glass?

A

1.5×108 m/s1.5 \times 10^8\text{ m/s}1.5×108 m/s

B

2.0×108 m/s2.0 \times 10^8\text{ m/s}2.0×108 m/s

C

2.3×108 m/s2.3 \times 10^8\text{ m/s}2.3×108 m/s

D

4.6×108 m/s4.6 \times 10^8\text{ m/s}4.6×108 m/s

Markscheme

3.2.2 Refraction of light Questions

  1. IGCSE
  2. /Physics
  3. /3.2.2 Refraction of light

100 exam-style questions on CIE IGCSE Physics 3.2.2 Refraction of light. Each one has a worked solution and a mark scheme showing where the marks go.

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