11. A screwdriver and observer are positioned in front of a plane mirror as shown below.
a) Is the entire length of the
screwdriver, from the base of
the handle to the tip of the
blade, visible in the mirror
from the position of the
observer? On the provided
figure include a sufficient
number of rays to support
your answer and explain your
reasoning in the space below.
Plane Mirror
b) If the lower half of the mirror (as indicated by the dotted-line boxed region) is blocked, what
portion of the screwdriver is obscured from the observer's view, if any? Indicate the areas where the
the observer can be located and be able to see the entire screwdriver once the lower portion of the
mirror is blocked. Include at least two additional rays to justify your answer and explain your
reasoning in the space below.