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प्रश्न
State two uses of magnifying glass.
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उत्तर
- It is used to see and read the small letters and figures.
- It is used by watchmakers to see the small parts and screws of the watch.
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संबंधित प्रश्न
A lens forms an erect, magnified, and virtual image of an object. Where is the object placed in relation to the lens?
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 ______.
Name the lens used as a magnifying glass.
Why is the focal length of the lens, used as a magnifying glass, kept short?
What information we seek by the linear magnification of the image when it is positive or negative?
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?
How is the magnification (m) produced by a lens related to the object distance (u) and the image distance (v)?
