A converging mirror forms a real image of height 4 cm of an object of height 1 cm placed 20 cm away from the mirror. Find the image distance.

The focal length of convex lens is 20 cm. If an object of height 4 cm is placed at a distance of 30 cm from the lens, find: The magnification produced by the lens.

An object is placed at a distance u from a concave mirror and its real image is formed on the screen placed at distance v from the mirror. If f is the focal length of the mirror, then the graph between frac(1)(v) versus frac(1)(u) is (magnitude only)

The real image of an object placed at 60 cm from a concave Mirror is formed at 20 cm. from the mirror. Find the focal length of the mirror.

An object 2 cm in height is placed at a distance of 16 cm from a concave mirror. If the focal length of the mirror is 9.6 cm., find the image distance, nature and size of the image.

Rajashree wants to get an inverted image of height 5 cm of an object kept at a distance of 30 cm from a concave mirror. The focal length of the mirror is 10 cm. At what distance from the mirror should she place the screen ? What will be the type of the image, and what is the height of the object?

An object is at a distance of 10 cm from a concave mirror and the image of the object is at a distance of 30 cm from the mirror on the same side as that of the object. The radius of curvature of the concave mirror is

Choose the correct alternative and write it along with its allotted alphabet: An object of height 10cm is placed in front of a plane mirror. The height of the image will be…….

Find the focal length of a convex lens which produces a real image at 60 cm from the lens when an object is placed at 40 cm in front of the lens .

An object is placed at a distance of 40 cm from a concave mirrorr of focal length 15 cm . If the object is displaced through a distance of 20 cm towards the mirrorr, the displacement of the image will be