Advertisements
Advertisements
प्रश्न
The maximum magnifying power of a convex lens of focal length 5 cm can be ______.
विकल्प
25
10
1
6
उत्तर
The maximum magnifying power of a convex lens of focal length 5 cm can be 6.
Explanation:
Focal length of convex lens, f = +5 cm
magnifying power of convex lens (simple microscope) is
m = 1 + `"D"/"f"`
D is the distance of distinct vision, D = 25 cm
m = 1 + `25/5` = 6
APPEARS IN
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.
A lens forms an erect, magnified and virtual image of an object.Draw a ray diagram to show the formation of image.
Draw a neat labelled ray diagram to show the formation of an image by a magnifying glass. State three characteristics of the image.
The magnification by a lens is -3. Name the lens and state how are u and v related?
Define the term magnifying power of a simple microscope. How does it depend on the focal length of the lens used?
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?
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.
State two uses of magnifying glass.
