Problem

Find the magnification of a telescope that uses a…

02:37

Problem 28 Medium Difficulty

The distance between the eyepiece and the objective lens in a certain compound microscope is 20.0 $\mathrm{cm} .$ The focal length of the objective is $0.500 \mathrm{cm},$ and that of the eyepiece is 1.70 $\mathrm{cm} .$ Find the overall magnification of the microscope.

Answer

2.14 \mathrm{cm}

Topics

Electromagnetic Waves

Wave Optics

Book Cover for College Physics 2017

College Physics 2017

Chapter 25

Optical Instruments

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Top Physics 103 Educators

Elyse G.

Cornell University

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University of Michigan - Ann Arbor

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University of Sheffield

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McMaster University

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Video Transcript

So we have the distance between the objective and the I piss, which is also the length of the microscope is 20 centimeter. The focal length of the objective is 0.5 centimeter, and the focal length of the eyepiece is 1.7. Senator. Now, to find the overall magnification of the microscope, we know that m the overall magnification m is the lateral magnification of the objective times angular magnification of the ivy's right. And this is also L over f o times 25 centimeter over focal length of the I piss. So that means for all of this we have here, um, is going to be cool too negative of 20 over 0.5 times 25 over 1.7. So this is going to give me a negative 588. That is the overall magnification of the microscope.

Netra S.

University of Wisconsin - Milwaukee

Topics

Electromagnetic Waves

Wave Optics

Book Cover for College Physics 2017

College Physics 2017

Chapter 25

Optical Instruments

Top Physics 103 Educators

Elyse G.

Cornell University

Andy C.

University of Michigan - Ann Arbor

Aspen F.

University of Sheffield

Meghan M.

McMaster University