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संबंधित प्रश्न
Explain the following term related to spherical lenses:- centres of curvature
A lens forms a real image 3 cm high of an object 1 cm high. If the separation of object and image is 15 cm, find the focal length of the lens.
Draw separate diagram for the formation of virtual image of an object by a concave mirror.
AB and CD, two spherical mirrors, from parts of a hollow spherical ball with its centre at O as shown in the diagram. If arc AB = `1/2` arc CD, what is the ratio of their focal lengths? State which of the two mirrors will always form virtual image of an object placed in front of it and why.
If a spherical mirror breaks, what type of mirrors are the individual pieces?
A straight stick partly dipped in water obliquely appears to be bent at the surface of the water.
Define linear magnification produced by a mirror?
An object is placed in front of a concave mirror as shown in the following figure. By scale drawing, find the nature of the image. Given f = 10 cm, v = 30 cm.

