An object, 0.04 m high, is placed in front of and at right angles to the axis of a concave mirror which has radius of curvature 0.15 m. If a real image 0.12 m high is obtained, determine by scale drawing or otherwise, the distance of the object from the mirror. How far, and in what direction, must the object be moved in order to obtain a virtual image 0.12 m high.