If a concave mirror of focal length f produces a real image n times the size of the object,then find the distance of the object from the mirror.

An object is kept in front of a concave mirror of focal length 15 cm.The image formed is three times the size of the object.Calculate two possible distances of the object from the mirror.

A convex mirror of focal elongth f produces an image magnified m times.The distance of the object from mirror is

An object is placed in front of a convex mirror of focal length 30 cm.If the image formed is a quarter of the size of the object,find the position of the image.

A convex lens of focal length 0.12 m produces an inverted image ,which is three times as long as the object.Find the distance between the object and the lens for a real image.

A concave mirror of focal length 15 cm forms an image having twice the linear dimenstions of the objet.The position of the object,when the image is virtual,will be

An object of size 5 cm is placed at distance 25 cm in front of a concave mirror of focal length 20 cm. Find the size and nature of image formed ? Also find distance of image from the mirror.

A convex mirror forms an imge,which is 1//n times the size of the object .If the focal length of the mirror is f,the distance of the object is

An objects is placed at a distance equal to focal length of convex mirror.If the focal length of the irror be f,then the distance of the image from the pole of the mirror is:

We wish to obtain an erect image of an object, using a concave mirror of focal length 15cm what should be the range of distance of the object from the mirror? What is the nature of the image ? Is the image larger or smaller than object? Draw a ray diagram to show the image formation in this case.