question_answer

(a) A diminished (not point sized) image is formed by convex lens, locate the position of the object. (b) What is the magnification produced by a convex lens for an object placed at \[2{{F}_{1}}\]?

Answer:

(a) A diminished image is formed by a convex lens, if the image is formed between\[{{F}_{2}}\]and\[2{{F}_{2}}.\] Therefore the object should be placed between\[{{F}_{1}}\]and infinity. (b) 1