Edexcel IGCSE Physics 3.15 law of reflection
Practise reflection questions by measuring angles from the normal and drawing reflected rays so incidence and reflection angles match.
- Syllabus
- First assessment 2019
- Course
- Physics 4PH1
Exam points
- Draw a reflected ray so the angle of reflection matches the angle of incidence.
- Measure the angle of incidence from the normal on light or water-wave diagrams.
3.15 Law of reflection question 1
A student does an investigation to determine the refractive index of a block made from flint glass.
She directs a ray of red light at the block, as shown in diagram 1.
Diagram 1
Some of the light is reflected from the surface of the block at point A . On diagram 1, draw this reflected ray of light.
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