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Refraction - Coggle Diagram

- - - - Using a ray box, shine light onto the glass block. Draw the incident ray, refractive ray and the normal at the point of incidence. use a protractor to measure the angle.
    - - Get the Sin of i and r then plot on graph paper. The graph is a straight line through the origin.
        Verifies - Sin i x Sin r
    - - No refraction as the ray would travel straight through
    - - A smaller angle would lead to greater percentage error and it would be difficult to measure small angles.
    - - No refraction as the ray would travel straight through