Calculating Angular Magnification for a Simple Magnifier

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In summary, the question is asking for the angular magnification of a lens with a focal length of 50 cm when used as a simple magnifier and the image is formed at the normal near point of 25 cm. The two equations given are used to calculate this magnification, with the second equation being the appropriate one to use in this scenario.
  • #1
Arshad_Physic
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Homework Statement


A lens having a focal length 50 cm is used as
a simple magnifier.

What is the angular magnification obtained
when the image is formed at the normal near
point (25 cm)?


Homework Equations



1) m = N/d, where d is distance of object

2) m = 1 + N/f

The Attempt at a Solution



Homework Statement


A lens having a focal length 50 cm is used as
a simple magnifier.

What is the angular magnification obtained
when the image is formed at the normal near
point (25 cm)?

I don't really get what do they want as the answer.

Also, there are two equations, which one do I use?

THanks! :)
 
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  • #2
sorry - I found it! :)
 

1. What is a magnifying glass problem?

A magnifying glass problem is a common scientific problem where an object appears larger when viewed through a magnifying glass. This is due to the magnifying glass using convex lenses to bend light and create a magnified image.

2. How does a magnifying glass work?

A magnifying glass works by using convex lenses to bend light and create a magnified image. The convex lens is thicker at the center and thinner at the edges, causing light rays to converge and create a larger image.

3. Can a magnifying glass magnify any object?

No, a magnifying glass can only magnify objects that are within its focal length. The focal length is the distance between the lens and the point where the image is in focus. If an object is placed outside of the focal length, it will not appear magnified.

4. How do you calculate the magnification of a magnifying glass?

The magnification of a magnifying glass can be calculated by dividing the focal length of the lens by the focal length of the eye. This will give you the magnification factor, which is how many times larger the object will appear when viewed through the magnifying glass.

5. What are some real-world applications of magnifying glasses?

Magnifying glasses are commonly used in scientific research, as well as in everyday tasks such as reading small text or examining small objects. They are also used in the medical field for procedures such as surgery or examining small bodily structures.

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