20. A converging lens forms a virtual image of a real object that is two times the objects size. The converging lens is replaced with a diverging lens having the same size focal length. What is the magnification of the image formed by the diverging lens?
(A) -1
(B) −2/5
(C) 2/3
(D) 3/2
(A) -1
(B) −2/5
(C) 2/3
(D) 3/2