An object is placed on the central axis 24 cm in front of a concave spherical mirror that has a radius of curvature equal to 50 cm. a) (5 points) Calculate the focal length of this concave mirror. b) (10 points) Locate the image of the object due to this mirror. c) (5 points) Calculate the transverse magnification of this mirror. d) (10 points) Describe fully the image formed by this mirror (real/virtual, erect/inverted, magnified/minified).