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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.
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. Where is the object placed in relation to the lens?
A lens forms an erect, magnified and virtual image of an object.Draw a ray diagram to show the formation of image.
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.
A magnifying glass forms ______.
Define the term magnifying power of a simple microscope. How does it depend on the focal length of the lens used?
Define magnification produced by a lens. State its unit.
Write an expression for the magnifying power of a simple microscope. How can it be increased?
State two uses of magnifying glass.
