1 Find where the ray exits the block of glass of index of refraction 1.5 by accurate ray tracing and by calculation. The grid spacing is 1cm. a Carefully sketch

the path of the ray through the glass block. b Calculate all angles of incidence and refraction. Write the angles on the picture. c Calculate the precise location on the block (e.g. distance from some corner) from which the ray emerges from the block (to three accurate digits).