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प्रश्न
How is the magnification (m) produced by a lens related to the object distance (u) and the image distance (v)?
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उत्तर
The magnification produced by a lens = v/u
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.

Draw a neat labelled ray diagram to show the formation of an image by a magnifying glass. State three characteristics of the image.
Ray diagram for the formation of image by a magnifying glass.

An object is placed at a distance of 20 cm in front of a concave lens of focal length 20 cm. find: the magnification of image.
What are conjugate foci?
Draw a neat diagram to explain the action of a convergent (convex) lens as a reading glass (or magnifying glass). State the characteristics of the image formed.
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Copy and complete the following ray diagram.

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