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Consider a telescope of the type used by Galileo, having a convex objective and a concave eyepiece as illustrated in Figure 26.23(a). Construct a problem in which you calculate the location and size of the image produced. Among the things to be considered are the focal lengths of the lenses and their relative placements as well as the size and location of the object. Verify that the angular magnification is greater than one. That is, the angle subtended at the eye by the image is greater than the angle subtended by the object.

the angular magnification is greater than $1 .$

Physics 103

Chapter 26

Vision and Optical Instruments

Reflection and Refraction of Light

Wave Optics

University of Washington

Simon Fraser University

University of Winnipeg

Lectures

02:51

In physics, wave optics is…

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In optics, ray optics is a…

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Consider a telescope of th…

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Galileo's original te…

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Use a ray diagram to find …

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Consider two optically per…

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The Gailiean Telescope. Fi…

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A simple magnifier gives t…

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(a) Draw rays to form the…

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Find the angular magnifica…

02:19

Sketch a ray diagram to sh…

00:34

Draw rays to scale to loc…

So here, consider, uh, the objective. I think of access now distant light out of the side is coming like this. Now, if this is the focus, Dan, this tree with those shred through the optic axes with, like this and then this is what we're focused on. Meet someone over here. So here you have the intermediate object which, with solid as the football born from the i BCE and this is what we just are. So the final image will be produced over here who just much and lost. And if this angle ease todo and this angle lease had a crime, then you're magnification would be terrifying over terror.

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