It is desired to obtain an erect image of an object, using concave mirror of focal length of 12 cm
(i) What should be the range of distance of an object placed in front of the mirror?
(ii) Will the image be smaller or larger than the object. Draw ray diagram to show the formation of image in this case.
(iii) Where will the image of this object be, if it is placed 24 cm in front of the mirror ? Draw ray diagram for this situation also to justify your answer.
Show the positions of pole, principal focus and the centre of curvature in the above ray diagrams.
i) Range of object distance will be between 0 cm and 12 cm because the focal length is given as 12 cm.
ii)
That is, the image formed is larger than the object.
iii)
Image will be formed at a distance of 24 cm in front of the mirror.
In the above ray diagram, pole is given by P, principal focus is given by F and centre of curvature is C.
