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प्रश्न
Name the lens used as a magnifying glass.
उत्तर
Convex (or converging) lens is used as a magnifying glass.
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संबंधित प्रश्न
What is a magnifying glass?
Define magnifying power of a simple microscope. How can it be increased?
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.
The maximum magnifying power of a convex lens of focal length 5 cm can be ______.
What are conjugate foci?
Define the term magnifying power of a simple microscope. How does it depend on the focal length of the lens used?
Name the lens for which magnification is always less than 1.
A convex lens produces on a screen an image twice the size of the object. If the position of image and object be interchanged, what will be the magnification then?
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.
State two uses of magnifying glass.
