why plane mirrors are used for decorative purposes ? Share with your friends Share 1 Ishani Upadhyay answered this Maybe because they present the image in the same way they exist. -3 View Full Answer Adarsh Saini answered this The Plane mirror can be used for decorative purpose because They reflect light by the mirror tricks the eye & makes the space seem larger. 1 Sajal Majumder answered this This is the answer 0 G answered this Give reason why the plane mirror is used in decorative purpose 4