State the position of the object in front of a converging lens if :
It produces a real and same size image of the object.

State the position of the object in front of a converging lens if : It is used as a magnifying lens.

Which lens can produce a real and inverted image of an object ?

Where should an object be placed in front of a convex lens to get a real to get real image of the size of the object ?

The focal length of a concave mirror is 30 cm.Find the position of the object in front of the mirror,so that the image is three times the size of the objects.

Where should an object be placed in front of a convex lens in order to get : an enlarged real image

A convex lens forms a real and inverted image of a needle at a distance of 50 cm from it. Where is the needle placed in front of the convex lens if the image is equal to size of the object ? Also, find the power of the lens.

An object is kept in front of a concave lens.What is the nature of the image formed?

State the position of object for which the image formed by a concave mirror is of same size.

A linear object is placed on the axis of a lens. An image is formed by refraction in the lens. For all positions of the object on the axis of the lens, the positions of the image are always between the lens and the object. (i) Name the lens. (ii) Draw a ray diagram to show the formation of the image of an object placed in front of the lens at any position of your choice except infinity.

An illuminated object and a screen are placed 90 cm apart. What is the focal length and nature of the lens required to produce a clear image on the screen twice the size of the object ?