A thin pencil of length 20 cms is kept along the principal axis of a concave mirror of curvature 30 cm. Nearest end of the pencil is 20 cm from the pole of the mirror. What will be the size of the image of the pencil?

A linear object of heigth 10 cm is kept in front of concave mirror of radius of curvature 15 cm, at distance of 10 cm. The image formed is

A rectangular sheet of length 30 cm and breadth 3 cm is kept on the principal axis midway off & 2f of a concave mirror of focal length 30 cm. Draw the image formed by the mirror on the same diagram, as far as possible on scale.

An infinitely long rod lies along the axis of a concave mirror of focal length f. The near end of the rod is distance u gt f from the mirror. Its image will have length

An object is placed on the principal axis of a concave mirror at a distance of 1.5 f (f is thefocal length). The image will be at,

The focal length of a concave mirror is 15 cm. if the object distance is 20 cm, find the Position and nature 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?

Solve the numerical problem An object is placed at 50 cm from a concave mirror of radius of curvature 60 cm. Find the image distance. What is the nature of the image?

An object of height 4 cm is kept in front of a concave lens of focal length 20 cm. If the object distance is 30 cm, find the position and the height of the image .