Advertisements
Advertisements
प्रश्न
State two uses of magnifying glass.
Advertisements
उत्तर
- It is used to see and read the small letters and figures.
- It is used by watchmakers to see the small parts and screws of the watch.
APPEARS IN
संबंधित प्रश्न
A lens forms an erect, magnified, and virtual image of an object. Where is the object placed in relation to the lens?
A lens forms an erect, magnified, and virtual image of an object. Name the device which uses this principle.
What is a magnifying glass?
A magnifying glass forms ______.
What information about the nature of image is real or virtual, do you get from the sign of magnification + or -?
Name the lens used as a magnifying glass.
Name the lens for which magnification can be 1. For what position of the object will the magnification be 1?
A convex lens produces on a screen an image twice the size of the object. If the position of image and object be interchanged, what will be the magnification then?
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?
