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प्रश्न
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उत्तर
Linear magnification is defined as the ratio of the height of the image to the height of the object. It is taken to be positive for an image to be virtual and erect and negative when image is real and inverted.
Magnification = height of image / height of object.
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संबंधित प्रश्न
Explain the following term related to spherical lenses:- principal axis
We can obtain a real, enlarged and inverted image by a concave mirror.
Name the two types of spherical mirrors. What type of mirror is represented by the:
front side of a shining steel spoon?
The shiny outer surface of a hollow sphere of aluminium of radius 50 cm is to be used as a mirror:
State whether this spherical mirror will diverge or converge light rays.
Write the formula for a lens connecting image distance (v), object distance (u) and the focal length (f). How does the lens formula differ from the mirror formula?
Define the following term:
concave mirror
Is real image always inverted?
An object 10 cm high is placed at a distance of 20 cm in front of a spherical mirror of focal length 25 cm. By scale drawing find the nature, position, and magnification of the image in the following case:
Concave mirror
