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प्रश्न
(i) Draw a ray diagram to show how the lens can be used as a ‘magnifying glass’? State the nature of the lens.
(ii) In what respect does the image in (i) above different from the image formed by a concave lens?
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उत्तर
(i) The nature of the lens used is convex. The image formed is magnified, virtual, and upright. In this case, a convex lens is said to be used as a ‘magnifying glass.’
(ii) Image formed by a concave lens differs from the image in size. It is much smaller in size.
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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.
Where is the object placed with respect to the principal focus of a magnifying glass, so as to see its enlarged image? Where is the image obtained?
Ray diagram for the formation of image by a magnifying glass.
What information about the nature of image is real or virtual, do you get from the sign of magnification + or -?
If the magnification produced by a lens is - 0.5, the correct statement is ______.
The magnification by a lens is -3. Name the lens and state how are u and v related?
The magnification by a lens is +0.5. Name the lens and state how are u and v related?
Will the image formed by a magnifying glass be real or virtual?
Name the lens for which magnification is always less than 1.
Copy and complete the following ray diagram.
