試題詳解

6. An object is placed 2f away from a thin and double convex lens of focal length f. Which of the following descriptions on its image is true?
(A) erect, real, and magnified
(B) inverted, virtual, and reduced
(C) inverted, real, and the same size
(D) erect, virtual, and magnifled
(E) inverted, real, and reduced