A concave mirror of focal length 10cm. A square wire of side 3cm is placed 23cm away from the mirror. The centre of the square lies on the principal axis. What is the area enclosed by the image?
1 Answer
Sep 19, 2017
We know that conjugate foci relation of spherical mirror Is as follows
Where
Magnification
Length of each side of the square frame is
If the plane of the square wire frame is kept vertical with the principal axis the length of each side of its image will be
Hence area enclosed by the image will be