Question

(Part A) The medium-power objective lens in a laboratory microscope has a focal length fobjective = 4.00 mm . If this lens produces a lateral magnification of -37.0, what is its "working distance"; that is, what is the distance from the object to the objective lens? (answer in mm)

(Part B) What is the focal length of an eyepiece lens that will
provide an overall magnification of -130? Assume student's
near-point distance is *N* = 25 cm. (answer in cm)

please show a step by step how you got your answers

Answer #1

The medium-power objective lens in a laboratory microscope has a
focal length fobjective = 3.75 mm. If this lens produces a lateral
magnification of -53.0, what is its "working distance"; that is,
what is the distance from the object to the objective lens? What is
the focal length of an eyepiece lens that will provide an overall
magnification of -130? Assume student's near-point distance is
N=25cm.

The focal length of the objective lens in a microscope is 0.270
cm, and an object is placed 0.275 cm from the objective.
a. How far from the objective lens will the objective image be
formed?
b. If the image of this object is viewed with the eyepiece
adjusted for minimum eyestrain (image at the far point of the eye)
for a person with normal vision. What is the needed focal length of
the eyepiece lens if the distance between...

A compound microscope operated in near point adjustment
comprises an objective lens of focal length 2.5 cm and an eyepiece
lens of focal length 15.0 cm that are placed 20.0 cm apart. If the
near-point distance is 25.0 cm, what is the overall magnification
of the microscope?

Please explain, walkthrough, and show equations.
The focal length of the objective lens in a microscope is 0.270
cm, and an object is placed 0.275 cm from the objective.
a. How far from the objective lens will the objective image be
formed?
b. If the image of this object is viewed with the eyepiece
adjusted for minimum eyestrain (image at the far point of the eye)
for a person with normal vision. What is the needed focal length of
the...

The focal length of the eyepiece of a certain microscope is 18.0
mm. The focal length of the objective is 9.00 mm. The distance
between the objective and eyepiece is 19.7 cm. The final image
formed by the eyepiece is at infinity. Treat all lenses as
thin.
(a) What is the distance from the objective to the object being
viewed?
cm
(b) What is the magnitude of the linear magnification produced by
the objective?
✕
(c) What is the overall...

1. The focal lengths of the objective and the eyepiece of a
microscope are 0.50 cm and 2.0 cm, respectively, and their
separation adjusted for minimum eyestrain (with the final image at
the viewer's far point) is 6.0 cm. The near point of the person
using the microscope is 25 cm and the far point is infinity.
a. If the microscope is focused on a small object, what is the
distance between the object and the objective lens?
b. If...

Q 26: Determine the lens separation and object
location for a microscope made from an objective lens of focal
length +0.70-cm and an eyepiece of focal length +4.0-cm. Arrange
the lenses so that a final virtual image is formed 100 cm to the
left of the eyepiece and so that the angular magnification is -260
for a person with a near point of 25 cm.
Part A: Determine the object distance from the
objective lens.
Part B: Determine the distance between the...

The focal length of the eyepiece of a certain microscope is 20.0
mm. The focal length of the objective is 5.00 mm. The distance
between the objective and eyepiece is 19.7 cm. The final image
formed by the eyepiece is at infinity. Treat all lenses as
thin.
(a) What is the distance from the objective to the object being
viewed?
________cm
(b) What is the magnitude of the linear magnification produced by
the objective?
_________?
(c) What is the overall...

I ONLY NEED PART B!
A. A compound microscope has an objective lens
with a focal length of 15 mm and an eyepiece with a focal length of
18 mm. A specimen is placed 1.6 cm away from the objective. At what
distance from the objective does the eyepiece need to be so that an
image appears approximately at an infinite distance away from the
viewer? ANSWER: 25.8 cm
B. What is the total
magnification of the image in the...

The tube length in compound microscope is 26 cm. The focal
length of the objective lens is 2 cm. The clearest image is formed
when an object of height 1 mm is placed at a distance of 2.18 cm
from the objective lens. Determine: 1. The position of the
intermediate image, 2. the focal length of the eye piece, that will
place the final image at the near-point, 3. the total magnification
of the microscope and the height of the...

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