This grade 11 physics

1. The wave theory is able to provide a better model than the corpuscular theory for partial reflection and partial refraction. The diagram below shows a wavefront moving from a dense material to a lighter material. The equivalent for a water wave would be moving from shallow water to deep water. The ray indicates the direction of motion of the wavefront and a wavelet is shown. The angle of incidence is labelled. For this diagram, do the following. (2 marks) - a. Draw a ray representing the direction of motion for the reflected wavefront. Show a possible location of the reflected wavefront and be sure to draw it correctly in reference to the ray. Also draw a wavelet on the ray at the location of the reflected wavefront. (2 marks) - b. Draw a possible ray showing the direction of motion of a refracted wavefront. Show a possible wavefront for the ray and then the wavelet