The distance between an object and a screen is 2m. Can an image of an object be obtained bn the screen with the help of a convex lens whose power is 1.25D?

The distance between an object and a divergent lens is m times the focal length of the lens. The linear magnification produced by the lens is

A luminous object is separated from a screen by distance d. A convex lens is placed between the object and the screen such that it forms a distinct image on the screen. The maximum possible focal length of this convex lens is

Show that the minimum distance between the object and the screen is 4 times of focal length of a convex lens at the time of real image formation.

To observe terrstrial bodies the angular magnification of a telescope is 5 . The distance between the objective and the eyepiece is 36 cm and the final image is formed at infinity . Determine the focal lengths of the objective lens and eyepiece lens.

The length of an object is 5 cm. An image of length 10cm is obtained when it is placed at a distance of 2 cm in front of a convex lens. What is the linear magnification and image distance?

The length of an object is 10 cm. An image of length 20cm is obtained when it is placed at a distance of 2 cm in front of a convex lens. What is the linear magnification and image distance

Three times magnified image of an object is formed on a screen placed at a distance of 8 cm from the object with the help of the spherical mirror. Determine the nature of the mirror. Focal length and the distance the mirror from the object.

An Object is placed at a distance of 90 cm from a screen. To cast an image of magnification 2 on the screen, what type of spherical mirror is required ? Determine the position of the mirror and its focal length.

A monochromatic light of wavelength 600 nm is emitted from slit of thickness 1 mm. if the distance between the slit and the screen is 2m. Then calculate the gap between the two adjacent first maximum points of the central maximum.