Question

Image formed by concave mirror how?​

Answer 1

FORMATION OF DIFFERENT TYPES OF IMAGES BY A CONCAVE MIRROR

FORMATION OF DIFFERENT TYPES OF IMAGES BY A CONCAVE MIRRORWhen the object is placed at infinity, the two rays AB and DE running parallel to the principal axis get reflected at point B and E respectively and intersect each other at the principal focus F on the principal axis.

Answer 2

Please refer this attachment friend

Application

If position of the object is at infinity this lens are used in Galilean telescope.

If the position of the object is at between infinity and optical centre this lens are used in Myopic eye.