Edexcel IGCSE Physics 3.17 Refraction practical
Practise using refraction investigation diagrams to measure angles, name variables and link bending of rays to real optical effects.
- Syllabus
- First assessment 2019
- Course
- Physics 4PH1
Exam points
- measure incidence and refraction angles with a protractor from the normal at a boundary
- name the independent variable in a refraction investigation, usually angle of incidence
- explain different refraction amounts for rays from different parts of the Sun
3.17 Refraction practical 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
Use a protractor to determine the angle of incidence and the angle of refraction of the red light at point A on diagram 1.
angle of incidence = ............ degrees
angle of refraction = ............ degrees
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