physics question

[suhasini_91]

i would like to get an answer for this question in physics:

An extended object OA is placed in front of a concave mirror. Draw a ray diagram to show the position of the image, label OB. State its nature, size and position.

i am slightly confused at what you mean by an 'extended object'.

[admin]

by extended object it means that the object is not a point.

e.g. of point object..

http://www.glenbrook.k12.il.us/gbssci/phys/Class/refln/u13l4a3.gif

e.g. of extended object..

http://www.glenbrook.k12.il.us/GBSSCI/PHYS/Class/refln/u13l3d4.gif[/url]