PHYSICS FORM 2
RECTILINEAR PROPAGATION OF LIGHT REVISION QUESTIONS
1. A girl stands 2m in front of a plane mirror.
i.
Calculate the distance between the girl and her image
ii.
If the mirror is moved 0.6m to the girl, what will be the distance between her
and image
2. A building standing 100m from a pinhole camera produces on the screen of the camera
an image 5 cm high 10 cm behind the pinhole. Determine the actual height of the
building.
3. What is meant by virtual image?
4. In a certain pinhole camera, the screen is 10cm from the pinhole. When the camera is
placed 6m away from a tree, a sharp image of the tree 16cm high is formed on the screen.
Determine the height of the tree
5. State the number of images formed when an object is between two plane mirrors placed
in parallel