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Physics
Classical Physics
Optics
Compound Microscope System: Magnification Power Explained
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[QUOTE="sophiecentaur, post: 6520953, member: 199289"] As usual, when someone worries about an apparent paradox or self contradiction, it can often be put down to context. If you use a telescope to look at the moon, the image will 'look' perhaps 50 times bigger. That's because of the angles subtended by lunar features. The eyepiece will often be adjusted to make the image appear 'at infinity, in which case you could say it will be 50 times the Moon's actual size. If you choose to focus so that the image is a metre in front of you (just as easy to see), the lateral magnification (if you actually choose to apply the definition) will be 50/350,000,000. Which of those quantities is the relevant one? Likewise, if you project a slide on a screen with a simple lens, the lateral magnification will be, perhaps 50X but then how would you define the angular magnification? It could well be 1X. So relax about the words used and look at what actually happens. :smile: [/QUOTE]
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Physics
Classical Physics
Optics
Compound Microscope System: Magnification Power Explained
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