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प्रश्न
What is a magnifying glass?
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उत्तर
A magnifying glass is a convex lens of short focal length. It is mounted in a lens holder for practical use.
संबंधित प्रश्न
Ray diagram for the formation of image by a magnifying glass.
If the magnification produced by a lens is - 0.5, the correct statement is ______.
Why is the focal length of the lens, used as a magnifying glass, kept short?
Name the lens for which magnification is always less than 1.
Show with the help of a ray diagram, the path of the ray when incident normally on the first surface of the glass block, through the block and the liquid.
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.
An object AB is placed between 2F1 and F1 on the principal axis of a convex lens as shown in the diagram. Copy the diagram and using three rays starting from point A, obtain the image of the object formed by the lens.
Write an expression for the magnifying power of a simple microscope. How can it be increased?
State two uses of magnifying glass.
