
Select the correct ray diagram for image formation by concave lens when the object is placed between infinity and optical centre.


Important Questions on Light


A student wants to obtain magnified image of an object AB as on a screen. Which one of the following arrangements shows the correct position of AB for him/her to be successful?


An object is placed between the optical centre and the focus of a thin convex lens. What is the nature of the image of the object?



An object is placed between and on the principal axis of a converging lens as shown in the diagram.
Copy the diagram and by using three standard rays starting from point , obtain an image of the object .






A virtual, diminished image is formed when an object is placed between the optical centre and the principal focus of a lens.
(i) Name the type of lens which forms the above image.
(ii) Draw a ray diagram to show the formation of the image with the above stated characteristics.



Where will you keep an object in front of a convex lens in order to get a virtual and magnified image?


Which of the following lenses would you prefer to use while reading very small letters?


