Pasco OS-8500 INTRODUCTORY OPTICS SYSTEM Manuale Utente Pagina 56

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Introductory Optics System 012-02744K
®
50
Why does the magnification increase as the objective lens is moved closer to the object?
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What focusing problems develop as the magnification increases?
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Use the Variable Aperture to restrict the path of light to the central regions of the objective lens. Vary
the size of the aperture and observe the effects on focusing.
What effect does the aperture have on focusing?
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_____________________________________________________________________.
What effect does the aperture have on the brightness of the image?
_____________________________________________________________________
_____________________________________________________________________.
What advantage would there be in using a 75 mm focal length lens as the eyepiece?
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_____________________________________________________________________.
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