The radii of curvature of he two surfaces of a lens are not the same .It forms image of an object.The surfaces of the lens facing the object and image are interchanged .Will the position of the image change ?

The human eye forms the image of an object at its:

A plano convex lens of refractive index 1.5 and radius of curvature 30cm. Is silvered at the curved surface. Now this lens has been used to form the image of an object. At what distance from this lens an object be placed in order to have a real image of size of the object.

A portion of a lens is broken. Will we get a complete image of an object with such a lens?

A convex lens forms a virtual image of an object. What is the position of the object?

In human eye,image of an object is formed at …… .

………..froms virtual and same size of image of an object

An unsymmetrical double convex thin lens forms the image of a point object on its axis. Will the position of the image change if the lens is reversed?

The image obtained with a convex lens is erect and its lenth is four times the length of the object.If the focal length of the lens is 20 cm,calculate the object and image distance.