Advertisements
Advertisements
Question
Name the lens for which magnification is always less than 1.
Solution
Concave lens.
APPEARS IN
RELATED QUESTIONS
Define magnifying power of a simple microscope. How can it be increased?
If the magnification produced by a lens is - 0.5, the correct statement is ______.
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?
Define the term magnifying power of a simple microscope. How does it depend on the focal length of the lens used?
What information we seek by the linear magnification of the image when it is positive or negative?
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.
Copy and complete the following ray diagram.
(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?