Concept explainers
The focal length of the eyepiece of the given microscope.
Answer to Problem 41P
Solution:
The focal length of the eyepiece of the microscope is found to be 1.52 cm.
Explanation of Solution
Microscopes are devices used to magnify tiny objects. The construction of the microscope is similar to that of the telescope. The objective produces a real and inverted image of the object, which falls between the focus and the optic centre of the eyepiece. The eyepiece produces an enlarged virtual image of the image formed by the objective. The final image formed is inverted and enlarged.
Given:
Magnification of the microscope
Barrel length
Focal length of the objective lens
Formula used:
For a relaxed eye, the image is formed at infinity. If the values of and are very less compared to the value of l, then, the magnification is given by,
Here, N is the near point of the eye, for normal eye, N has a value of 25 cm. and the focal length of the eyepiece is
Calculation:
Substitute the given values of N,l,M and in the expression and simplify.
Chapter 25 Solutions
Physics: Principles with Applications
Additional Science Textbook Solutions
Conceptual Physics (12th Edition)
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)
Essential University Physics: Volume 2 (3rd Edition)
Modern Physics
The Cosmic Perspective
Applied Physics (11th Edition)
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON