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प्रश्न
Define magnification produced by a lens. State its unit.
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उत्तर
The magnification produced by a lens is defined as the ratio of the size of the image to the size of the object, i.e.,
Magnification (m) = `"Size of the image"/"Size of the object"`
It has no unit.
संबंधित प्रश्न
The following diagram shows an object AB and a converging lens L with foci F1 and F2 State three characteristics of the image in relation to the object.
A lens forms an erect, magnified, and virtual image of an object. Name the device which uses this principle.
What is a magnifying glass?
Draw a neat labelled ray diagram to show the formation of an image by a magnifying glass. State three characteristics of the image.
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 maximum magnifying power of a convex lens of focal length 5 cm can be ______.
Name the lens used as a magnifying glass.
What information we seek by the linear magnification of the image when it is positive or negative?
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.
