concave lens will form exact mirror image.
concave lens does not form a rel image and convex MIRROR does not form a real image
(1)A plane mirror (2)A convex mirror (3)A concave lens
(1)A plane mirror (2)A convex mirror (3)A concave lens
convex mirror is not used in solar cooker since it form image inside the polished surface
a lens will focus the light to a point or will disperse it(concave or convex lens) same as with a mirror, tho lens have a differnce, they are transparent and will let the light rays pass through themand form a real image behind the lens, while a mirror cannot.
Eyepiece, Primary Mirror, Secondary Mirror, Prime Focus.
In a concave lens the object always forms a virtual image. The convex lens also forms a virtual image.
The distance at which the light rays bent by the lens (or mirror) converge into a coherent image.
a convex lens
Convex lens produces both real and virtual images. But concave lens produces only virtual images for real objects. If object is virtual then real image could be produced by a concave lens.
You are thinking of a lens. If it is to form an image you need a convex lens, also called a converging lens.
Any device containing a lens, such as a camera or projector, or one which uses prisms such as a periscope.