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प्रश्न
Why is the focal length of the lens, used as a magnifying glass, kept short?
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उत्तर
The focal length of the lens used as a magnifying glass is kept small to increase its magnifying power.
संबंधित प्रश्न
The following diagram shows an object AB and a converging lens L with foci F1 and F2 State three characteristics of the image in relation to the object.
What is a magnifying glass?
Where is the object placed with respect to the principal focus of a magnifying glass, so as to see its enlarged image? Where is the image obtained?
A magnifying glass forms ______.
The magnification by a lens is +0.5. Name the lens and state how are u and v related?
Name the lens used as a magnifying glass.
Will the image formed by a magnifying glass be real or virtual?
Copy and complete the following ray diagram.
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?
