Question

The diagram given alongside shows a ray of light entering a rectangular block of glass.

1. Copy the diagram and draw the normal at the point of entry.
2. Draw the approximate path of the ray of light through the glass block and out of the other side.

Answer 1

a.

NN' is the normal at the point of entry.

b. BC shows the path of the light ray through the glass block, and CD shows the path on the other side of the glass block.