physics question!!! please help?
i dont get this
can you help?
prove hi/ho = di/do
and 1/f = 1/do + 1/di
for convex or concave mirrors
**use geometry of diagrams
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It is easier to dig this if you imagine a reflection, with the focusing done by a lens rather than a mirror; all the geometric relations are unchanged. The first relation simply arises from similar triangles; the triangle described by the lens center and the object will be similar to that described by the lens center and the image because some rays go through the lens center. But I don’t know of a “proof” for the second relation; it is simply a definition of how a lens works.
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plug in numbers. and draw a free body diagram.
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I hope this helps you….
http://www.coolschool.ca/lor/PH11/unit8/U08L02.htm
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I have no clue….
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duh your trying to be funny…we need to know what your letters are referring to…distance?oblique angles?
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