11. The diagram in Fig. 7.16 shows a point
object P in front of a plane mirror MM1.
(a) Complete the diagram by taking two
rays from the point P to show the
formation of its image.
(b) In the diagram, mark the position of
eye to see the image.
(c) Is the image formed real or virtual ?
Explain why ?
Answers
Answer:
The line of sight principle suggests that in order to view an image of an object in a mirror, a person must sight along a line at the image of the object. When sighting along such a line, light from the object reflects off the mirror according to the law of reflection and travels to the person's eye. This process was discussed and explained earlier in this lesson. One useful tool that is frequently used to depict this idea is known as a ray diagram. A ray diagram is a diagram that traces the path that light takes in order for a person to view a point on the image of an object. On the diagram, rays (lines with arrows) are drawn for the incident ray and the reflected ray. Complex objects such as people are often represented by stick figures or arrows. In such cases it is customary to draw rays for the extreme positions of such objects.
Answer:
C. Virtual.
Explanation:
Because reflected rays meet only when they are produced backwards.