Plot a graph of angle of incidence, i in o on the y-axis against angle of refraction, r in o on the x-axis and draw the line of best fit. We can see from the graph that as the angle of incidence, i, ...

There are different ways to investigate refraction in rectangular blocks. In this required practical activity, it is important to: make, measure and record the angles of incidence accurately using a ...

MAY I direct the attention of those interested in aërodynamics to the fact that the centre of pressure on a triangular plane glider (apex forward) at a small angle of incidence (angle of attack), say ...