Name the lens that always forms a virtual and erect image.

A mirror which always forms a virtual, diminished and erect image of an object is :

A mirror which always forms virtual, diminished and erect image of an object is

Which of the following form(s) a virtual and erect image for all position of the object?

Can a single lens ever form a real and erect image?

A convex mirror always forms virtual and diminished images. _____

Assertion : The size of the mirrorr affect the nature of the image. Reason : Small mirrorrs always forms a virtual image.

A concave lens always forms a virtual image. Draw a ray diagram to show it. State the magnification of the image with sign, whether greater than, equal to or less than 1.

Identify the device used as spherical mirror or lens in following cases, when the image formed is virtual and erect in each case. (a) Object is placed between device and its focus, image formed is enlarged and behind it. (b) Object is placed between the focus and device, image formed is enlarged and on the same side as that of the object. (c ) Object is placed between infinity and device, image formed is diminished and between focus and optical centre on the same side as that of the object. (d) Object is placed between infinity and device, image formed is diminished and between pole and focus, behind it.

Prove that when an object is placed in front of a concave lens, the image formed is (i) virtual (ii) erect (iii) diminished (iv) and located between pole and focus.

An object is placed in front of a lens between its optical centre and the focus and forms a virtual, erect and diminished image. Name the lens which formed this image.