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Cambridge IGCSE Physics (0625)

1. Motion, forces and energy

2. Thermal physics

3.1 General properties of waves

3.2.1 Reflection of light

3.2.2 Refraction of light

3.2.2.1—Terms normal, angle of incidence and

3.2.2.2—An experiment to show refraction of

3.2.2.3—Passage of light through a transparent

3.2.2.4—Meaning of critical angle

3.2.2.5—Internal reflection and total internal

3.2.2.6—Refractive index, n, as the ratio of

3.2.2.7—Refractive index: n = sin i / sin r

3.2.2.8—Critical angle relation: n = 1 / sin c

3.2.2.9—Use of optical fibres, particularly in

3.2.3 Thin lenses

3.2.4 Dispersion of light

3.3 Electromagnetic spectrum

4. Electricity and magnetism

5. Nuclear physics

6. Space physics

7. Assessed scientific skills

IGCSE/CAIE/Physics//Concept/3. Waves/3.2.2 Refraction of light/3.2.2.1—Terms normal, angle of incidence and

3. Waves

Syllabus: 0625–2026–2027
Section: 3
Level: —

Exam analysis

Most tested topics

General properties of waves
Reflection of light
Refraction of light
Thin lenses
Dispersion of light
Electromagnetic spectrum
Sound