Advertisements
Advertisements
प्रश्न
How is the magnification (m) produced by a lens related to the object distance (u) and the image distance (v)?
Advertisements
उत्तर
The magnification produced by a lens = v/u
संबंधित प्रश्न
The following diagram shows an object AB and a converging lens L with foci F1 and F2. Draw two rays from the object AB and complete the diagram to locate the position of the image CD. Also mark on the diagram the position of eye from where the image can be viewed.
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.
A lens forms an erect, magnified and virtual image of an object.Draw a ray diagram to show the formation of image.
If the magnification produced by a lens is - 0.5, the correct statement is ______.
The magnification by a lens is +0.5. Name the lens and state how are u and v related?
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?
Draw a neat diagram to explain the action of a convergent (convex) lens as a reading glass (or magnifying glass). State the 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?
State two uses of magnifying glass.
