CSEC Physics · May/June 2008 · Paper 2 · Question 5(b)(i)

Figure 4 shows a ray of light, XY, incident on a right-angled prism, PQR, of refractive index 1.5. The point of incidence on PR is such that the refracted ray inside the prism is incident on PQ.

Calculate the angle of refraction at the boundary, PR.

This question uses a figure or table from the paper — you'll see it when you practise.