Concave Mirrors

Case #1: Object at infinity parallel rays converge at the principal focus F is located at a position which is equal to half of the radius of the mirror: FV = ½ CV
Case #2: Object is Region I Image formed is real, inverted and reduced in size Image is in Region II
Case #3: Object is at C = 2F the image formed is real, inverted and equal in size to the object Image is at C = 2F
Case #4: Object is in Region II Image formed is real, inverted and enlarged in size Image is in Region I
Case #5: Object is at F No image is formed.
Case #6: Object is Region III Image formed is virtual, upright and enlarged in size Image can be formed anywhere "behind" the mirror