Draw a ray diagram in each of the following cases to show the formation of image, when the object is placed :(i) between optical centre and principal focus of a convex lens.(ii) anywhere in front of a concave lens.(iii) at 2F of a convex lens.State the signs and values of magnifications in the above mentioned cases (i) and (ii).

Draw a ray diagram in each of the following cases to show the formatio

1.	Draw a ray diagram in each of the following cases to show the formation of image, when the object is placed :(i) between optical centre and principal focus of a convex lens.(ii) anywhere in front of a concave lens.(iii) at 2F of a convex lens.State the signs and values of magnifications in the above mentioned cases (i) and (ii).
Answer» Solution :(i) RAY DIAGRAM is drawn here. The magnification is +ve and has a value greater than 1 (m > 1). It shows that a virtual, erect and enlarged IMAGE is formed. (ii) Ray diagram has been shown here. The magnification is +ve but having a value less than 1 (m < 1). It means that a virtual, erect and diminished image is being formed. (iii) Ray diagram is drawn here.