Question

A compound microscope consists of two converging lenses: an
objective lens, and an eyepiece placed 15 cm behind it. The
microscope magnifies a tiny object 0.25 cm in front of the
objective lens, forming an enlarged final image at the near point N
= 25 cm of a normal human eye.

Part A) The focal length of the eye piece is f_{e} =
5 cm. Neglecting the distance between the human eye and
the eyepiece, what is the focal length f_{o} of the
objective lens?

Part B) How many times is the final image enlarged compared to the
object?

360 times

260 times

160 times

460 times

Answer #1

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 objective lens in a microscope is 0.270
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a. How far from the objective lens will the objective image be
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Determine the lens separation and object location for a
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and so that the angular magnification is -260 for a person with a
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B:Determine the distance between the objective lens and the
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Answer...

The eyepiece of a compound microscope has a focal length of 2.90
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Express your answer to two significant figures and include the
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Express your answer...

The distance between the objective and eyepiece lenses in a
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.
Part A
What eyepiece focal length will give the microscope an overall
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*******SHOW ALL WORK PLEASE

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...

1. The focal lengths of the objective and the eyepiece of a
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b. If...

The focal eyepiece length of a compound microscope’s objective
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The two lenses of a compound microscope are separated by a
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(a) the angular magnification of the eyepiece
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A 750 × microscope uses a 0.45-cm-focal-length objective lens.
If the tube length is 17.1 cm , what is the focal length of the
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Express your answer to two significant figures and include the
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