A 2.0-cm-high object is placed at a distance of 20 cm from a concave mirror. A real is formed at 40 cm from the mirror. Calculate the focal length of the mirror and the size of the image.

The distance of an object from a spherical mirror is equal to the focal length of the mirror. Then the image:

An object is placed at a distance 40 cm in front of concave mirror. Focal length of mirror is 20 cm, so what will be type of image ?

As shown in the figure, a thin rod AB of length 10 cm is placed on the principal axis of a concave mirror such that it.s end B is at a distance of 40 cm from the mirror. If the focal length of the mirror is 20 cm, find the length of the image of the rod

A real object is placed at a distance f from the pole of a convex mirror, in front of the convex mirror. If focal length of the mirror is f, then distance of the image from the pole of the mirror is ........

An object is placed at a distance of 25 cm on the axis of a concave mirror, having focal length 20 cm. Find the lateral magnification of an image.

An object is placed at 30 cm in front of a concave mirror of radius of curvature 30 cm. Find the position, nature, and magnification of the image in each case.

A short object of length L is placed along the principal axis of a concave mirror away from focus. The object distance is u. If the mirror has a focal length f, what will be the length of the image ? You may take L lt lt |v- f|.