Physics 5054 · O Level · Refraction of light

Refraction of light — practice question

A student is finding the refractive index of the glass in a semi-circular block. The student uses the relation refractive index $= \frac{\sin(\text{angle of incidence})}{\sin(\text{angle of refraction})}$. The semi-circular glass block is shown for you in Fig. 3.1. You may make drawings on Fig. 3.1.
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Describe an experiment the student can carry out to obtain a precise value for the refractive index of the glass. In your description of the experiment you should state the equipment used, explain how the equipment is used, state the readings taken, show how the refractive index is calculated from the readings, and explain how the student improves the accuracy of the experiment.

Worked solution & mark scheme

This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “A suitable refraction experiment is identified” …

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