Finding Focal Lengths of Microscope Lenses

Click For Summary

Homework Help Overview

The discussion revolves around determining the focal lengths of microscope lenses based on given magnification and tube length. The subject area includes optics and lens equations.

Discussion Character

  • Exploratory, Assumption checking, Mathematical reasoning

Approaches and Questions Raised

  • The original poster attempts to understand how to apply magnification equations to find the focal lengths, expressing confusion due to having two unknowns. Some participants question the relationship between lens size and magnification, while others provide a reference link for further exploration.

Discussion Status

The discussion is ongoing, with participants exploring different aspects of magnification and its implications on lens design. Some guidance has been offered regarding the magnification equation, but no consensus has been reached on the approach to solve the problem.

Contextual Notes

The problem presents constraints such as the fixed tube length and the requirement to find two unknown focal lengths, which complicates the application of the magnification equation.

shorty_47_2000
Messages
9
Reaction score
0
Can someone tell me what sort of equation I would use for this question, I can't use the magnification as I have two unknowns. At least I don't know how to apply the magnification equation to this question.

A microscope is made in a tube 25.0cm long. It magnifies 5.00 x 10 to the 2 times, 50.0 times by the objective lens and 10 times by the eyepiece. What is the focal length of the two lenses?
 
Physics news on Phys.org
What do you need to get greater magnification, a wider objective lens? :bugeye:
 
magnification is given by the eq. M = -q / p

see if that helps
 

Similar threads

Focal length of the eyepiece lens in a compound microscope
  • · Replies 7 ·
Replies
7
Views
2K
How to measure the magnification of a microscope in the lab
  • · Replies 12 ·
Replies
12
Views
3K
How Do Contact Lenses Correct Myopia and Alter Near Point Vision?
  • · Replies 1 ·
Replies
1
Views
2K
The focal length of a microscope eyepiece
  • · Replies 1 ·
Replies
1
Views
3K
Image distance of a Keplerian telescope
  • · Replies 7 ·
Replies
7
Views
3K
Understanding Two Convex Lenses: Ray Diagram and Focal Lengths
  • · Replies 3 ·
Replies
3
Views
3K
What Focal Length Eyepiece Provides a -125 Magnification?
  • · Replies 1 ·
Replies
1
Views
3K
Find the location and length of the final image
  • · Replies 2 ·
Replies
2
Views
1K
What Eyepiece Focal Length Achieves a 350x Magnification in a Microscope?
  • · Replies 4 ·
Replies
4
Views
6K
Compound Microscope: Calculating Image Location with Two Lenses
  • · Replies 4 ·
Replies
4
Views
2K