An object. 3.0 cm in height, is placed at a distance of 20.0 cm in front of a convex mirror of focal length 6.0 cm. on its principal axis. Its image has a height of _______and is_____?
Aless than 3.0 cm, erect
Bmore than 3.0 cm, inverted
Cmore than 3.0 cm, erect
Dless than 3.0 cm. inverted