question_answer

(a) A real image magnification produced by a lens is greater than 1. Predict the position of the object. (b) A virtual image magnification produced by a lens is greater than 1. Predict the position of the object. (c) Only virtual images are formed by __lens. (d) The position of the object for a concave lens is anywhere between O to infinity. What is the nature of the image? (e) A lens can form both real and virtual images. Name the type of lens.

Answer:

(a) Object is placed between\[{{F}_{1}}\]and\[2{{F}_{1}}\] (b) Between optic centre and principal focus. (c) Concave lens. (d) Virtual, erect and diminished. (e) Convex