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प्रश्न
If the magnification produced by a lens is - 0.5, the correct statement is ______.
विकल्प
The lens is concave
The image is virtual
The image is magnified
The images is real and diminished formed by a convex
उत्तर
If the magnification produced by a lens is - 0.5, the correct statement is the images is real and diminished formed by a convex.
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संबंधित प्रश्न
The focal length of a convex lens is 25 cm. At what distance from the optical centre of the lens an object be placed to obtain a virtual image of twice the size?
What are conjugate foci?
Will the image formed by a magnifying glass be real or virtual?
Define magnification produced by a lens. State its unit.
Name the lens for which magnification can be 1. For what position of the object will the magnification be 1?
Name the lens for which magnification is always less than 1.
Copy and complete the following ray diagram.
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.
What is a magnifying glass (or a simple microscope)? Draw a ray diagram to show how a convex lens may be used as a magnifying glass. Where should the object be placed? State three characteristics of the image formed.
(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?
