Advertisements
Advertisements
Question
The maximum magnifying power of a convex lens of focal length 5 cm can be ______.
Options
25
10
1
6
Solution
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
RELATED QUESTIONS
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. Where is the object placed in relation to the lens?
Define magnifying power of a simple microscope. How can it be increased?
A magnifying glass forms ______.
An object is placed at a distance of 20 cm in front of a concave lens of focal length 20 cm. find: the magnification of image.
Define the term magnifying power of a simple microscope. How does it depend on the focal length of the lens used?
Why is the focal length of the lens, used as a magnifying glass, kept short?
Define magnification produced by a lens. State its unit.
How is the magnification (m) produced by a lens related to the object distance (u) and the image distance (v)?
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.
