University Physics Volume 3
17th Edition
ISBN: 9781938168185
Author: William Moebs, Jeff Sanny
Publisher: OpenStax
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Textbook Question
Chapter 2, Problem 96P
A microscope with an overall magnification of 800 has an objective that magnifies by 200. (a) What is the angular magnification of the eyepiece? (b) If there are two other objectives that can be used, having magnifications of 100 and 400, what other total magnifications are possible?
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A simple compound microscope with an overall magnification of -850 has an objective that magnifies by -250.
Part (a) What is the magnification of the eyepiece?
Part (b) If there is another objective that can be used, having magnification of -400, what other total magnification is possible?
In a compound microscope, the focal length of the objective is 4.45 cm and that of the eyepiece is 7.10 cm. The distance between
the lenses is 20.2 cm. (a) What is the angular magnification of the microscope if the person using it has a near point of 35.0 cm? (b) If,
as normal, the first image lies just inside the focal point of the eyepiece, as in the drawing, how far is the object from the objective?
(c) What is the magnification (not the angular magnification) of the objective?
(a) Number i -24.5
(b) Number i 6.175
(c) Number i
-3.695
(a)
(c)
Final
F
image
(virtual)
Final
image
Object
Fo
Object
Fo
Lens 1
(Objective)
Units
Units
Units
Objective
Fo
cm
Fo
No units
No units
First
image
(real)
Fe
First
image
First
image
Fe
Lens 2
(Eyepiece)
Eyepiece
Fe
The distance between the eyepiece and the objective lens in a certain compound microscope is 23.0 cm. The focal length of the eyepiece is 1.50 cm, and that of the objective is 0.50 cm. What is the overall magnification of the microscope? (b) The desired overall magnification of a compound microscope is 200. The objective alone produces a lateral magnification of 15.0. Determine the required focal length of the eyepiece.
Chapter 2 Solutions
University Physics Volume 3
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