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प्रश्न
What information about the nature of image is real or virtual, do you get from the sign of magnification + or -?
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उत्तर
A positive sign of magnification indicates that the image is virtual, while a negative sign indicates that the image is real.
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संबंधित प्रश्न
A lens forms an erect, magnified and virtual image of an object.Draw a ray diagram to show the formation of image.
Ray diagram for the formation of image by a magnifying glass.

If the magnification produced by a lens is - 0.5, the correct statement is ______.
The focal length of a convex lens is 25 cm. At what distance from the optical centre of the lens an object be placed to obtain a virtual image of twice the size?
The magnification by a lens is -3. Name the lens and state how are u and v related?
Define the term magnifying power of a simple microscope. How does it depend on the focal length of the lens used?
Name the lens used as a magnifying glass.
Will the image formed by a magnifying glass be real or virtual?
Name the lens for which magnification can be 1. For what position of the object will the magnification be 1?
An erect, magnified, and a virtual image is formed when an object is placed between the optical centre and principal focus of a lens.
(i) Name the lens.
(ii) Draw a ray diagram to show the formation of the image with the above-stated characteristics.
