An upright object 4.0 cm tall is placed a. ) 10.0 cm , b) 20 cm in front of a concave mirror which has a radius of curvature of 30 cm . a. ) solve for the focal length, image distance . magnification factor and height of image. b. ) Describe the image as to position orientation (upright or inverted) : magnification ( enlarged or diminished ) : and type ( virtual or real) ( ) support answer to a and b by constructing a may diagram drawn to scale