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प्रश्न
Draw a neat labelled ray diagram to show the formation of an image by a magnifying glass. State three characteristics of the image.
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उत्तर
If the object (AB) is situated between the focal length and optical centre of a convex lens, then its image (A'B') will form on the same side of the lens.
The image formed will be virtual, magnified and erect.
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संबंधित प्रश्न
The following diagram shows an object AB and a converging lens L with foci F1 and F2. Draw two rays from the object AB and complete the diagram to locate the position of the image CD. Also mark on the diagram the position of eye from where the image can be viewed.
A magnifying glass forms ______.
If the magnification produced by a lens is - 0.5, the correct statement is ______.
An illuminated object lies at a distance 1.0 m from a screen. A convex lens is used to form the image of the object on a screen placed at a distance of 75 cm from the lens. Find:
- the focal length of the lens, and
- the magnification.
What information we seek by the linear magnification of the image when it is positive or negative?
Define magnification produced by a lens. State its unit.
What is a simple microscope or a magnifying glass? Draw a ray diagram to show its function.
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.
Write an expression for the magnifying power of a simple microscope. How can it be increased?
State two uses of magnifying glass.
