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Results tagged with optics
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user 26834
Optics is the study of light, and its interaction with matter. It includes topics such as imaging systems, fiber optics, lasers, quantum optics, and more.
1
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What causes the phenomena of a ring appearing around the shadow of an airplane
This phenomenon is called a Glory. It is caused by back scattering from individual water droplets. There is a lot more detail to be found on this site: http://www.atoptics.co.uk/droplets/gloab.htm
W …
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4
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In an optical system with a single convex lens, where should the image area be placed in ord...
It is not the case that all the rays will focus at the same point. Rays with different directions will focus at different points. You are probably thinking about rays parallel the the optical axis a …
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0
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Is it possible build a telescope on a field of mirrors?
It is very unlikely that such a system would be viable as an astronomical telescope since it it would be essentially unsteerable. The detection of very faint objects typically requires long exposure …
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4
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Will a prism widen a monochromatic beam?
Provided the prism is of high quality (broadly speaking its faces need to be optically flat, and its material free of defects), then there should be no broadening. What the prism does is disperse dif …
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9
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Why did high quality mirrors use aluminum coatings instead of silver?
Also, regarding the front/back surface point, if the back of the mirror is surfaced, you need to get the right shape on each surface, rather than just the front.
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Refraction through prism
You can see this if you draw a ray diagram, consult an elementary level book on optics, or just look at the above diagram. …
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Shining a laser onto a mirror
Also, if the mirror you use is not surface silvered (or aluminised), there will be internal reflections between the front surface of the mirror, and the silvered rear surface. This show up any imperf …
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