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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. Calculate the image distance. What is the focal length of the mirror ?

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.

An object is placed 0.4 m from a convex mirror and a plane mirror is placed at a distance of 0.3 m from the object. The images formed in the two mirrors coincide without parallex. What is the focal length of the convex mirror ?

(a) For which position of an object, a concave mirror forms a real image equal in size to the object ? (b) State one use of a concave mirror. (c) An object of height 1 cm is placed at a distance of 15 cm from a concave mirror of radius of curvature 20 cm. Find the postition, nature and size of the image formed.

The radius of curvature of a convex spherical mirror is 1.2m . How far away from the mirror is an object of height 1.2m if the distance between its virtual image and the mirror is 0.35m ? What is the height of the image?[Apply formula for paraxial rays].

The radius of curvature of a convex spherical mirror is 1.2m . How far away from the mirror is an object of height 1.2cm if the distance between its virtual image and the mirror is 0.35m ? What is the height of the image?[Apply formula for paraxial rays].

A thin converging lens forms a real image of an object located far away from the lens. The image is formed at A at a distance 4x from the lens and height of the image is h. A thin diverging lens of focal length x is placed at B [PB = 2x] and a converging lens of focal length 2x is placed at C [PC = 3x] . The principal axes of all lenses coincide. Find the height of the final image formed.

A thin converging lens forms a real image of an object located far away from the lens. The image is formed at A at a distance 4x from the lens and height of the image is h. A thin diverging lens of focal length x is placed at B [PB = 2x] and a converging lens of focal length 2x is placed at C [PC = 3x] . The principal axes of all lenses coincide. Find the height of the final image formed.

State the following statements as TRUE or FALSE. a. A convex mirror cannot from a real image for a real object. b. The image formed by a convex mirror is always diminished and erect. c. Virtual image formed by a concave mirror is always enlarged. d. Only in the case of a concave mirror, it may happen that the object and its image move in same direction. e. In the case of a concave mirror, the image always move faster than the object. f. If an object is placed in front of a diverging mirror at a distance equal to its focal length, then the height of image formed is half of the height of object. g. For two positions of an object , a concave mirror can form englarged image. h. Concave mirror is used as a rear view mirror in motor vehicles. i. If some portion of the mirror ois covered, then complete image will be formed but of reduced brightness. j. A plane mirror always forms an erect iamge of same size as that of the object. k. The image formed by a plane mirror has left-right reversal. l. A virtual object means a converging beam.