| 1. The floor plan for a mirror maze is shown in the
figure below; every wall section within the maze is mirrored and all
angles are parts of equilateral triangles. If you stand at entrance x,
which of the people a, b, and c hiding in the maze can you see in the
virtual hallways extending from entrance x? |
 |
|
 |
2. The figure below shows an overhead view of a corridor
with a plane mirror mounted at one end. A burgler, B, sneaks along the
corridor directly toward the mirror. If d = 3.0 m, how far from the mirror
will she be when the security guard S can first see her in the mirror? |
|
 |
3. The figure below shows an idealized submarine
periscope (submarine not shown). The periscope consists of two parallel
plane mirrors set at 45° to the periscope axis. A penguin is sighted at a
distance D from the periscope, as shown. (a) Is the image seen by a
submarine officer peering into the scope real or virtual? (b) Is it
upright or inverted? (c) Is it magnified? If so, by how much? (d) Find the
distance of the image from the bottom mirror. |
|
